pick up correct statememnt

i think both are correct...whats ur opinion ?

arre this is not assertion reason ques....simple more than one correct

First is optically active..
for the second one i can see a plane of symmetry cutting the molecular plane (along the sigma bond b/w the doubly bonded carbons)

yes where is the symmetry plane govind????

A is right
B is wrong.

A) is an allene , which shows optical activity when two groups attached to each terminal carbon are different.

thus, its optically active.

B) is an alkylidene , which is opyically active when two groups attached to each terminal carbon are different.

thus, its optically inactive. ( as two methyl groups are attached to one carbon )

thx aieeee[1]