What is mutex?

(a) a mutually exclusive synchronization object

(b) can be acquired by more than one thread at a time

(c) helps in sharing of resource which can be used by one thread

(d) all of the mentioned

The question was posed to me in examination.

My question comes from Multithreaded Programming topic in division Reflections, Multithreaded Programming, Collection Classes and Mathematical Functions of C#

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