Which one of the following is (an) example(s) of agency problem?

		Many families hire nannies to take care of their child(ren) and later find that their child(ren) was (were) abused by the nanny.
		The CEO of your firm decides to invest heavily into AI technology. Although your firm has no related experience at all, he can increase get promoted quickly.
		A venture capital invested $10million with a startup pharmaceutical company so that the firm can conduct R&D on a new cancer drug. Upon receiving the money, the firm CEO purchased a private jet for himself.
		All of the above