**Core Concept**
The Factories Act is a legislation aimed at protecting the health, safety, and welfare of workers in factories. It sets out various provisions, including those related to working hours, to prevent worker fatigue and promote a safe working environment.

**Why the Correct Answer is Right**
The Factories Act prescribes a maximum of 48 hours of work per week to prevent worker fatigue. This limit is intended to ensure that workers have adequate rest and leisure time to recover from the physical and mental demands of work. The Act also requires factories to provide adequate breaks and time off for rest and recreation.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is lower than the prescribed limit of 48 hours.
**Option B:** This option is incorrect because it is higher than the prescribed limit of 48 hours.
**Option C:** This option is incorrect because it is not a standard unit of measurement for working hours.

**Clinical Pearl / High-Yield Fact**
It is essential for medical professionals to be aware of the Factories Act and its provisions, as workers in factories may present to healthcare services with work-related health problems. A high index of suspicion for work-related illnesses, such as musculoskeletal disorders and respiratory diseases, is crucial in these cases.

**Correct Answer:** C. 60