A is 5 years younger to his brother B. At the time of birth of his sister C, the age of his father D was 30 years and that of his mother E was 28 years. The age of his sister C was 6 years at the time of birth of his brother B. What was age of his father D at the time of the birth of A?
1
41 years
2
40 years
3
31 years
4
30 years