Which of the following statements are true/false?
1. No person shall be allowed to work in a mine who has already been working in any other mine within the preceding ten hours.
2. The Central government has the power to constitute mining board for any group or class of mines, who enjoy the power equivalent to the certifying inspector.
3. The workers will be granted a certificate of fitness from certifying surgeon and it shall be valid only for a period of twenty four months.
4. Inevery mine where more than five hundred persons are employed, ambulances and stretchers need to be readily available.

A. 1, 2, 3 and 4 are true

B. 1, 3 are true and 2, 4 are false

C. 2, 4 are true and 1, 3 are false

D. 3, 4 are true and 2, 1 are false

Answer: Option C