Correct option is B
11, 30, 22, 41, 33, (...), 44, 63
In the above series following patterns are follows –
The series is follows 2 types of series
1st series = 11, 22, 33, 44, …….(+11)
2nd series = 30, 41, 52, 63 …….(+11)
Therefore, the missing number is 52.