NO.PZ2016032802000017
问题如下：
According to Standard V(C) Record Retention, in the absence of regulatory guidance or firm policies, CFA Institute suggests that the records should be maintained for at least:
选项：
A.
six years.
B.
seven years.
C.
eight years.
解释：
B is correct.
If there is no legal requirement, CFA Institute suggests that the records should be maintained for at least 7 years.
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