In his lifetime,he enjoyed a reputation＿＿.A.as great as,if not greater than,Beethoven B.great,
In his lifetime,he enjoyed a reputation＿＿.
A.as great as,if not greater than,Beethoven
B.great,if not as greater as Beethoven
C.As great as Beethoven ,if not greater
D.As great,if not greater,as Beethoven
D.表示两个成分进行比较的时候，其中一个与另一个齐名，后者更好的时候，常常采用这种结构：
“as+形容词原级，if not+形容词比较级,as+n.”
但也有答案选A。我想知道是不是两个都对？