Select the most appropriate option to substitute the underlined segment in the given sentence. If there is no need to substitute it, select No substitution required.
They couldn't find what they wanted and decide to look elsewhere.

Options

A. no substitution required
B. have decided to look
C. had decided looking
D. decided to look

Answer

D

Explanation

decided to look should be used. The given sentence is in the Past tense. So, the correct sentence will be They couldn.t find what they wanted and decided to look elsewhere.