Number series
In the series 2, 5, 10, 17, 26, ? what will be the next term?
I. 38
II. 40
III. 42
IV. 44

Question: 以下哪项是正确的？
Options:
A. II 或 I, B. 仅 III, C. 仅 II, D. 仅 I, E. 以上各项均不成立
Answer: B
True statement: III