The shorter and longer arms of a submetacentric chromosome are referred to as s-arm and l-arm respectively, p-arm and q-arm respectively, or m-arm and n-arm respectively?

Correct option is B. p-arm and q-arm respectively
Sub metacentric chromosome is Heterobrachial.Short arm designated as 'p' arm, p stands for petite/short and the long arm designated as 'q' arm.So, the correct answer is 'p-arm and q-arm respectively'