NO.PZ2020021002000058
问题如下：
Once the firm/bank makes a risk appetite statement
选项：
A.
it is committed to follow it for at least three years.
B.
it must report it in their annual financial report.
C.
the board must approve it
D.
all of the above.
解释：
C is correct.
The board must approve it.
请问下老师A和B错在哪里
