A) What is the primary purpose of the contextlib.nullcontext?

B) What does the with statement in Python simplify?

C) What exception does a context manager's __exit__ method parameters allow to handle?

D) In custom context managers, __exit__ receives how many arguments besides self?

E) Which of the following is a valid use case for context managers?

F) Custom context managers can be created using which of the following?

G) What does the __exit__ method return to suppress exceptions?

H) What type of object does the with statement expect?

I) What method is called upon exiting a context manager, regardless of an exception being raised or not?

J) When might you prefer a function-based context manager over a class-based one?

K) The contextlib module's contextmanager decorator is used with:

L) How can context managers benefit your code?

M) Which is NOT a built-in context manager in Python?

N) Which of the following is a common mistake when using context managers?

O) Can context managers be nested within each other?

P) Which method is called when entering a context manager?

Q) The with statement can manage multiple context managers in a single line using:

R) What is the advantage of using the contextlib.ExitStack?

S) What does using contextlib.suppress accomplish?

T) Which module provides utilities for creating context managers?