## **Core Concept**
The Employees' State Insurance (ESI) Act of 1948 provides social security and health insurance to Indian workers. The act includes various benefits such as medical, sickness, maternity, disability, and death benefits. Sickness benefit is one of the key benefits provided under the ESI Act.

## **Why the Correct Answer is Right**
Sickness benefit under the ESI Act is payable for a maximum period of 91 days in two consecutive benefit periods, which is approximately 6 months. This benefit is provided to insured persons who are suffering from long-term diseases that require prolonged treatment. The correct answer specifies a duration that aligns with the ESI Act's provisions.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because it does not accurately reflect the duration for which sickness benefit is payable under the ESI Act.
- **Option B:** This option is incorrect because it specifies a duration that does not match the provision of the ESI Act regarding sickness benefits.
- **Option D:** This option is incorrect because it provides a duration that is not in line with the ESI Act's sickness benefit provisions.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the sickness benefit under the ESI Act is payable for a maximum of 91 days in two consecutive benefit periods. This benefit helps insured persons who are unable to work due to sickness.

## **Correct Answer:** . 91 days.