string always contains single line of text in python " " is " python lists are mutablebut strings are not ascii is standard for representing characters using numeric codes the split method breaks string into list of substringsand join does the opposite substitution cipher is good way to keep sensitive information secure the add method can be used to add an item to the end of list the process of associating file with an object in program is called "readingthe file multiple choice accessing single character out of string is calledaslicing bconcatenation cassignment dindexing which of the following is the same as [ :- ]as[- bs[:cs[:len( )- ds[ :len( ) what function gives the unicode value of characteraord bascii cchr deval which of the following can not be used to convert string of digits into numberaint bfloat cstr deval successor to ascii that includes characters from (nearlyall written languages is atelli bascii+cunicode diso which string method converts all the characters of string to upper caseacapitalize bcapwords cuppercase dupper the string "slotsthat are filled in by the format method are marked byabc[ { which of the following is not file reading method in pythonaread breadline creadall dreadlines the term for program that does its / with files is afile-oriented bmulti-line cbatch dlame before reading or writing to filea file object must be created via aopen bcreate cfile dfolder