## **Core Concept**
The failure rate of contraceptive methods, including the male condom, is typically expressed in terms of the number of failures per 100 users over a specific period, usually one year. This rate helps in understanding the effectiveness of the contraceptive method. The male condom is a barrier method used to prevent pregnancy and sexually transmitted infections (STIs).

## **Why the Correct Answer is Right**
The correct answer indicates a specific failure rate for the male condom. Typically, the failure rate of the male condom, when used correctly and consistently, is around 2% (or 2 failures per 100 users in a year). However, with typical use, which accounts for inconsistent or incorrect use, the failure rate can be higher. The World Health Organization and other medical sources often cite a failure rate of about 13-14 failures per 100 users in a year for typical use, which aligns with option **C. 13-14**.

## **Why Each Wrong Option is Incorrect**
- **Option A:** A failure rate lower than what is typically reported for condoms with typical use. While 2% is a correct figure for perfect use, it's not reflective of real-world (typical) usage.
- **Option B:** This option might seem plausible but does not accurately reflect the commonly cited failure rate for typical use of male condoms.
- **Option D:** A significantly higher failure rate than what is generally reported for male condoms.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the effectiveness of condoms can significantly increase with proper and consistent use. Education on correct usage (e.g., using a new condom for each act of intercourse, ensuring it does not slip during use) can reduce the failure rate closer to the perfect use rate.

## **Correct Answer:** C. 13-14.