in order to raise and shift heavy loads from one place to another, they ______ are employed in the construction of big works.

in order to raise and shift heavy loads from one place to another, the

1.	in order to raise and shift heavy loads from one place to another, they ______ are employed in the construction of big works.
A.	Elevators
B.	Conveyors
C.	Cranes
D.	Trucks
Answer» D. Trucks