2 + [2 + {2 + (2 + (2 + 23)}] = _____?

– by
2 + [2 + {2 + (2 + (2 + 23)}] = _____?

A. 17/4
B. 33/4
C. 65/4
D. 129/4
Explanation:
2 + [2 + {2 + (2 + (2 + 23)}]
= 2 + 6 + 1/4 = 33/4