Select the most appropriate option to fill in the blank.
It is the ____________ to reach Delhi.

Correct option is B

Explanation:
• “Fastest” refers to speed, which is appropriate when talking about travel/route.
• “Quickest” is also correct, but “fastest” is more commonly used with route.
Correct: It is the fastest route to reach Delhi.
Option Meanings:
Quickest – very fast.
Fastest – most rapid.
Strongest – with most strength. (irrelevant)
Lowest – refers to height or price. (not speed in this context)