Look at this series: 70, 71, 76, ____, 81, 86, 70, 91
What number should fill the blank?
I. 70
II. 71
III. 80
IV. 96
Question: 以下哪项是正确的？
Options:
A. 仅 III
B. 非 II
C. II 或 III
D. 以上各项均不成立
E. I 或 II
Answer: B
E
True statement: I