Each set of the following sentences comprises four alternatives labelled as 'A','B','C', and 'D'. Candidate is required to select the most suitable alternative which conveys the exact meaning in accordance with the correct grammatical rules.
(a)I do not understand to whom she is talking.
(b)I do not understand to whom she is talking about.
(c)I do not understand to whom she is talking to.
(d)I do not understand to whom she is talking.

Options

A. I do not understand to whom she is talking.
B. I do not understand to whom she is talking about.
C. I do not understand to who she is talking to.
D. I do not understand to whom she is talking.

Answer

C