What is the missing number in the sequence: 4, 6, 10, 18, __, 66

by

A. 20
B. 34 
C. 55
D. 27

🧠 Explanation:

Sequence = 4, 6, 10, 18, __, 66
Differences = +2, +4, +8, +16, +32 (doubling)
Missing term = 18 + 16 = 34
Check last = 34 + 32 = 66 (ok)
Answer = 34