What is the correct answer for number 29 ? explain why and answer this

The answer is 3.

The structure A is the oviduct, where fertilization usually takes place. If the both the oviducts are blocked, the eggs could still be produced in the ovaries. So 1 is incorrect.

For 2, sperm is produced in male and insulin is related to the pancreas, not the uterus. So, incorrect.

For 3, the sperms could not travel to the oviduct and meet with the egg. Thus, no fertilization.

For 4, if there is no fertilization, embryos could never develop.

fumikage isn't really a bird, and tsuyu does have teeth. tsuyu has a transformation quirk which still allows her to be partially human. otherwise we'd have a large frog running around. fumikage has teeth because again, he isn't a bird. his head was a quirk mixture if i'm correct.