NO.PZ2018062004000210
问题如下：
Which of the following statement is the highest quality spectrum of financial reporting:
选项：
A.GAAP, decision-useful, sustainable and adequate return.
B.GAAP, decision-useful
C.Fictitious transactions.
解释：
Answer is A, by definition, at the top of the spectrum, the highest quality spectrum of financial reporting is described as GAAP, decision-useful, sustainable and adequate return.
可以解释一下A的内容吗，不然记不住
