Here's a short story:

The Christian Church is a term generally used by Protestants and some others to refer to the whole group of people belonging to the Christian religious tradition throughout history. In this understanding, the "Christian Church" does not refer to a particular Christian denomination but to the body of all believers; but most Christians follow the traditional Christian understanding of the term, and believe that the term "Christian Church" or "Church" applies only to a specific historic Christian body or institution, namely their own (e.g., the Roman Catholic Church, the Orthodox Church, the Non-Chalcedonian Churches of Oriental Orthodoxy, or the Assyrian Church of the East). The Four Marks of the Church first expressed in the Nicene Creed are that the Church is One (a unified Body of Particular Churches in full Communion of doctrines and faith with each other), Holy (a sanctified and deified Body), Catholic (Universal and containing the fullness of Truth in itself), and Apostolic (its hierarchy, doctrines, and faith can be traced back to the Apostles). 

Thus, the majority of Christians globally (particularly of the apostolic churches listed above, as well as some Anglo-Catholics) consider the Christian Church as a visible and institutional "societas perfecta" enlivened with supernatural grace, while Protestants generally understand the Church to be an invisible reality not identifiable with any specific earthly institution, denomination, or network of affiliated churches. Others equate the Church with particular groups that share certain essential elements of doctrine and practice, though divided on other points of doctrine and government (such as the branch theory as taught by some Anglicans). (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: What do the majority of Christians consider the Christian Church?
Guess: a visible and institutional "societas perfecta" enlivened with supernatural grace

Question: What do others equate the church with?
Guess: an invisible reality not identifiable with any specific earthly institution, denomination, or network of affiliated churches

Question: Who is the term Christian Church usually used by to refer to the whole group?
Guess: Protestants

Question: What do most Christians believe about the term "Christian Church"?
Guess: it applies only to a specific historic Christian body or institution

Question: Can you name a couple of these churches?
Guess: yes

Question: Name two?
Guess: the Roman Catholic Church and the Orthodox Church

Question: Where were the Four Marks of the Church 1st expressed?
Guess: in the Nicene Creed

Question: What is the first one of these Marks?
Guess: the Church is One

Now answer the following question in the same format.

Question: Can you name another?

the Church is Holy