Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The fourth limb of Ashtangyoga is Pranayama.
Reason R : Pranayama is a Yoganga in Yoga Sutra which mainly includes Puraka, Rechaka and Kumbhaka.
In the light of the above statements, choose the correct answer from the options given below