In a healthy human eye, the focusing is done by the
1 To and fro movement of the eye lens
2 Changing curvature of the retina
3 Change in the convexity of the lens through ciliary muscles
4 None of these
How long can the Prime Minister remain in office?
(a) Till the President wants him to remain so
(b) Till he enjoys the confidence of the majority part in
(c) Till he remains MP and the leader of the majority party
in Lok Sabha
(d) Both ?b? and ?c?