## **Core Concept**
The Medical Termination of Pregnancy (MTP) Act is a law that governs the conditions under which a pregnancy can be terminated in India. The Act specifies the gestational age limit and the number of medical practitioners required to perform an abortion.

## **Why the Correct Answer is Right**
According to the MTP Act, up to 20 weeks of gestation, the opinion of one doctor is sufficient to terminate a pregnancy. However, after 20 weeks, the opinion of two doctors is required. The Act was amended in 2021, extending the gestational age limit from 20 to 24 weeks under certain conditions, but still requiring one doctor's opinion up to 20 weeks.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because it does not accurately represent the gestational age limit for one doctor's opinion as per the MTP Act.
- **Option B:** This option is incorrect as it suggests a different gestational age limit that does not align with the MTP Act's provisions for one doctor's opinion.
- **Option D:** This option is incorrect because it specifies a gestational age that requires the opinion of two doctors, not one.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that as per the MTP Act, the termination of pregnancy can be done by one doctor up to 20 weeks of gestation. Beyond 20 weeks and up to 24 weeks under certain conditions, the opinion of two doctors is required.

**Correct Answer: B. 20 weeks.**