Select the most appropriate word to fill in the blank. During the night the express train picked up ______ (a) speed (b) distance (c) rate (d) quick

Options

A. speed
B. distance
C. rate
D. quick

Explanation

Pick up means to improve something. The train was obviously running with some speed but during the night, it improved its speed. Hence, ‘train picked up (improved) speed’ will be the most appropriate answer