If the sequence of operations $-$ push $(1),$ push $(2),$ pop, push $(1),$ push $(2),$ pop, pop, pop, push $(2),$ pop are performed on a stack, the sequence of popped out values....

Your answer:

$2,1,2,2,1$

$2,1,2,2,2$

$2,2,1,2,2$

$2,2,1,1,2$

ear answer