Identify the most appropriate option to substitute the underlined segment. If no substitution is required, select No substitution.
He persisted `ul("to do that he thought ")`wad right (a) No substitution (b) for doing this which he thought (c) to do what he thinks (d) in doing what he thought

Options

A. No substitution
B. for doing this which he thought
C. to do what he thinks
D. in doing what he thought

Answer

D