have been doing和have done的区别

farming traditions that, in places, endure in at least 6,000 years.

(A)good growing conditions both encouraged farming traditions that, in places, endure in

(B)good growing conditions encouraged farming traditions that have, in places, endured for

(C)of good growing conditions have encouraged farming traditions that, in places, endured for

(D)of good growing conditions both encouraged farming traditions that have, in places, endured

(E)of good growing conditions encouraged farming traditions that have, in places, been enduring for

我知道答案选B

但是就是不是很理解E选项OG的解释。

OG是这样解释的：

The use of the present perfect progressive have been enduring is not grammatically incorrct, but it is rhetorically inappropriate and sounds exaggerated.

我不是很理解它的解释，然后我想问一下，在GMAT考试中有没有严格的关于have done和have been doing的区别。

本人是小白，希望NN能解释一下这个问题！么么哒！