Question

what made the driver and the mechanic choose their roles? ​

Answer 1

Answer:

The mechanic, who provided motor power with his head to the trolley, was totally blind and the driver, who steered the trolley by scraping his foot on the floor, had only arm So the choice of roles proved to be easy for them.

Answer 2

Answer:

The mechanic, who provided motor power with his head to the trolley, was totally blind and the driver, who steered the trolley by scraping his foot on the floor, had only arm So the choice of roles proved to be easy for them.