What does 'Describe the language of this automaton' mean? I've been asked to do this as part of an assignment. Here is the automaton:

I understood it as describing in terms of the 5 tuples so I wrote:
The states are as follows:  Q = {A, B, C}
The alphabet is as follows: Σ = {0,1}
The start state is A
The accepting state is C
The transition function is as follows:

Is this what is meant by describing the language or am I supposed to answer using different metrics?
The language of an automaton is the language accepted by the automaton, that is, the set of words accepted by the automaton.
Now, certainly, one way of describing the language is as the language accepted by this particular automaton. But the question is asking you to find a simpler description. Here is the set of words accepted by your automaton:
$$
01, \\
001, 101, \\
0001, 0101, 1001, 1101, \\
00001, 00101, 01001, 01101, 10001, 10101, 11001, 11101, \\
\ldots
$$
Can you spot a pattern?