NO.PZ2020033001000058
问题如下：
Which of the following most accurately describe the use of small time steps in the binomial model?
选项：
A.Less realistic
B.More accurate
C.Less complicated
D.Less computation
解释：
B is correct.
考点：Binomial tree
解析：
The use of small time steps make the binomial model more realistic, more accurate, more complicated, and increase computational expense.
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