On Its Own, a Tow Truck Has a Maximum Acceleration

Multiple Choice

On its own, a tow truck has a maximum acceleration of 3.0 m/s². What will be its maximum acceleration when the truck is using a light horizontal chain to tow a bus of twice its own mass?

A) 2.0 m/s²
B) 1.5 m/s²
C) 1.0 m/s²
D) 2.5 m/s²