Problem: Lea and Pete have been married for 10 years without children. Wanting to have a baby, they consulted Dr. Steve Cruz, a prominent medical specialist on human fertility. Dr. Cruz found out that Pete has a low sperm count and he advised Lea advised to undergo artificial insemination. Mark, Pete's brother, readily consented to be the sperm donor. As a result, Lea became pregnant and 9 months later, she gave birth to a baby girl named Pia. A. Who is the father of Pia? Explain. (5) B. What are the requirements, if any, in order for Pete to establish his paternity over Pia. (5) Need Professional Help?