Do you understand what I mean ?

Options

A. What I mean .... is that understood by you
B. Was what I mean understood by you?
C. Is what I mean understood by you?
D. What I mean is understood by you?

Answer

C

Explanation

Is what I mean understood by you ? (Passive)
The sentence is in Simple Present Tense. (Active).
It is an Interrogative Sentence.
When an Interrogative Sentence begins with the Auxiliary verb-Do it should be changed into first Assertive, then Passive and then an Interrogative one.
Sentence `to` Do you understand what I mean ?
Step 1 (Assertive) You understand what I mean ?
Step 2 (Passive) What I mean is understood by you?
Step 3 (lnterrrogative) Is what I mean understood by you?