The muscular diaphragm that controls the size of the pupil is

The muscular diaphragm that controls the size of the pupil is

Q. The muscular diaphragm that controls the size of the pupil is

A.            cornea

B.            ciliary muscles

C.            iris

D.            retina

Answer: iris

Gkseries: Gkseries.com is a premier website to provide complete solution for online preparation of different competitive exams like UPSC, SBI PO, SBI clerical, PCS, IPS, IAS, IBPS PO, IBPS Clerical exam etc. & other graduate and post-graduate exams. Learn more on about us page