I found Stacey's comments:
https://www.manhattangmat.com/forums/in- ... -t785.html
Her logic will make answer B wrong as the temple is a physical location. . So where should be used in this sentence.
Her logic does not contradict my logic:
the which clause is grammatically incorrect. The temples lack a qualifier in the front i.e. the sentence is not ... the old temples in which ... So the which clause is the only qualifier of the temples and so is restrictive. I found many sources on the net that say such a clause should start with that. So B & C are out as grammatically incorrect.
D & E are trying to express the idea that creation as well as construction and decoration accounted for the energy.
D uses this structure: A accounted for X, and also B and C
This seems grammatically incorrect to me.
E uses the structure: A accounted for X, as well as B and C.
E seems grammatically correct. It does use the unidiomatic creation of images. So I would stay with a grammatically correct but unidiomatic answer and choose E.