D. viruses ( why does it have to be 20 characters)
1. Very few Americans can afford to plunk down $189,000 without getting a loan.
2. Running up your credit card to buy fancy dinners, you spend more time in your home than anywhere else.
3. Historically, home prices go up, making it the most profitable investment for average Americans.
Answer: Abstain from sex all together.
Explanation: It is proven that condoms and other types of contraceptives are not going to work 100% of the time. Having sex, even with protection, can lead to STDS and pregnancy. Some STDs can cause your reproductive system to decline in health and in some situations, fail altogether.