The average earning of all members of a family is Rs. 98 per d | Infinitesimal0

The average earning of all members of a family is Rs. 98 per day. The difference between the highest and lowest amount earned in the family is Rs.140. If highest and lowest earning members are excluded the average earning of the group decreased by Rs. 2. If the minimum earning is more than Rs 45 and is multiple of 7 and the number of members initially was equal to a prime number, with its both digits prime then which of the following will be the initial number of members? (1 Marks)
I.23
II.37
III.53
IV. 73

1. Only I
2. Only II
3. Both I and III
4. Both II and III
5. None of the above