a. They cost nothing to run because they ran on steam.
b. They were uncomplicated and inexpensive to build.
c. They could transport many materials or goods at once.
d. They were safe and cut the chance of costly accidents.
Answer:- c. They could transport many materials or goods at once.
• Since they can move several objects at once, the steam locomotives had significantly lessened the cost to move the commodities when saving time.
• With several facilities that has not be available, they let the passengers to travel quicker and comfortably.
