Which of the following statements correctly define about the implementation of interface?

(a) The calls to implementation of interface methods are routed through a method table

(b) A class which implements an interface can explicitly implement members of that interface

(c) One interface can be implemented in another interface

(d) None of the mentioned

I have been asked this question in an interview for job.

The doubt is from Interfaces Introduction in section Object Oriented Concepts of C#

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