Breed and Gender Needed

[kerrialexander]

Could you please tell me the breed and gender of my chickens? Thanks! I marked them on the pictures as A B C and D. B I’ve asked about before and was told Cockerel but I don’t know his breed. Sorry if there’s too many pictures.

 

[Crestcrazy2]

A & b are probably Easter eggers, c might be a black Australorp but I have no experience with that breed so I'm not sure just a guess