The number that comes next in the number sequence is 8, 10, 13, 17, 22, …..

The correct answer is: 28

Step by step solution:
10 – 8 = 2
13 – 10 = 3
17 – 13 = 4
22 – 17 = 5
Thus, the next number should have a difference of 6 from 22 and it should be greater than 22, thus, 22 + 6 = 28 is the following number.
Hence, option(a) is the correct option.