An Object Starts from Rest and Accelerates Uniformly in a Straight

Multiple Choice

An object starts from rest and accelerates uniformly in a straight line in the positive x direction. After 11 seconds, its speed is 70.0 m/s.
-What is the average velocity of the object during the first 11 seconds?

A) +3.6 m/s
B) +6.4 m/s
C) +35 m/s
D) +72 m/s
E) -140 m/s