How does a diaphragm prevent pregnancy select one of the options below as your
a. it releases spermicide into the uterus to keep sperm from fertilizing eggs.
b. it produces hormones that keep a woman's ovaries from releasing eggs.
c. it covers the penis to keep it from releasing sperm into the vagina.
d. it blocks the cervix in order to keep sperm from entering the uterus?

George’s daughter was born with a hole in her heart. he met up with a group of individuals of questionable character who agreed to deliver to george a healthy heart that could be a transplant for his daughter for a sum of $20,000. the group george negotiated with failed to deliver the heart. george tried to sue when he did not receive the heart but was surprised when the courts would not enforce the agreement. can george force performance of this contract? why or why not? (10 points)will he be able to recover the $20,000 that he gave for the heart? why or why not? (10 points)