Examine and discuss the common causes of infertilit

Beth and Bob have been married for 12 years and have been unable to conceive a child.  They would like to know more about infertility and possible treatments.
1. Examine and discuss the common causes of infertility.
2. What are some treatment options that Beth and Bob might investigate?
Answer both questions and cite your sources. (150 words or more).
 
"Our Prices Start at $11.99. As Our First Client, Use Coupon Code GET15 to claim 15% Discount This Month!!"