Assertion: Biceps and triceps are antagonistic muscles
Reason: The biceps flexes the arm and the tr4iceps straightens the arm.

Options

A. If both assertion and reason are ture and reason is the corect explanation of assertion
B. If both assertion and reason are ture but reson is not the correct explanation of assertion
C. If assertion is true reason is false
D. If both assertion and reason are false

Answer

a

Explanation

Some muscle are arranged in sets of two and act in opposition to bring movement. Such muscles are called antagonistic muscles. For example, the biceps bends or flexes the arm and its antagonist, the triceps straightens or extends the arm.