Which of the following is true about a docstring?

Questions & AnswersCategory: Programming LanguageWhich of the following is true about a docstring?
Adam asked 2 years ago

Which of the following is true about a docstring?
a. docstring is a single lie string.
b. docstring is a document
c. docstring is optional in a function, class or a module
d. docstring is the second statement that appears in a function, class or a module.