10. (a) When X is mistaken about the object of her act, such a mistake is known in legal literature as aberratio ictus
(b) An example of where a mistake is not material is when X intended to kill Y, but X mistook his victim's identity and shot Z instead.
(1) only statement (a) is correct
(2) only statement (b) is correct
(3) Both statements (a) and (b) are correct
(4) Neither statements (a) and (b) are correct