Tensile Stress and Strain: a Steel Lift Column in a Service

Tensile stress and strain: A steel lift column in a service station is a solid cylinder 4.0 m long and 0.20 m in diameter. Young's modulus for this steel is 20 × 10¹⁰ N/m². By what distance does the column compress when a 5000-kg truck is on it?

A) 4.7 × 10^-7 m
B) 8.0 × 10^-7 m
C) 3.2 × 10^-6 m
D) 7.8 × 10^-6 m
E) 3.1 × 10^-5 m