Arm Length Is Measured from the Acromion Process Through the

Arm length is measured from the acromion process through the

A) olecranon joint to carpal thumb hinge.
B) olecranon process to distal ulnar prominence.
C) proximal radial prominence to distal joint.
D) proximal ulnar joint to middle fingertip.
E) olecranon process to the second fingertip.