Technician a Says That a Low Section Modulus Frame (SM)has

Multiple Choice

Technician A says that a low section modulus frame (SM) has the advantage of better ride,a desirable feature in highway tractors.Technician B says that keeping SM low and rail yield strength high,is one way of achieving a highway tractor frame that has a forgiving ride and high RBM.Who is correct?

A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B