Select the most appropriate word to fill in the blank
Although they searched for an hour, they were not able to find the ______ easily.

Options

A. location
B. meeting
C. space
D. whereabouts

Explanation

Location - a particular place or position. Meeting - an assembly of people for a particular purpose, especially for formal discussion.
Space - a continuous area or expanse which is free, available, or unoccupied. Whereabouts - the place where someone or something is. According to the meaning of the sentence, option (a) is correct.