Task: Question Answering
Input (English): Problem: a train consists of 48 boxcars pulled by 2 engines. the boxcars are 15 meters long and the two engines are each 20 meters long. it crosses over a highway 24 meters wide at a speed of 14 m / s. how long does it take for the entire train to cross ?
Options: a. 56 sec, b. 63 sec, c. 72 sec, d. 81 sec, e. 88 sec
Output (English): a