Official Explanation
Diction; Parallelism
When two situations are asserted to be similar, the proper way to express this is with the paired expressions just as . . . so . . ., not like . . . so. Moreover, the two compared situations should be expressed as clauses, not as noun phrases. us the clause ancient Egyptian architectural materials
were recycled . . . is correct, as opposed to a noun phrase like ancient Egyptian architectural materials that were recycled . . .
A Just as and a following clause with a passive verb are preferred, but instead this option has like and a following noun phrase (ancient Egyptian materials . . .). It appears, somewhat implausibly, to say that the ancient Greek materials were similar to the earlier ancient Egyptian ones in that both were used by Roman, Muslim, and modern builders.
B Just as and a following clause with a passive verb are preferred, but instead this option has like and a following noun phrase (recycling ancient Egyptian materials . . .).
It appears illogically to say that the action of recycling was similar to the ancient Greek materials in that both were reused in subsequent centuries.
C Correct. e expressions just as and so are paired to link the two clauses in parallel, and both clauses use the passive construction.
D Just as is used to connect two clauses, which is good, but the rst clause employs the active construction rather than the preferred passive, so there is a failure of parallelism. Also, it is unclear what they refers to. e sentence appears to say illogically that some unidenti ed group’s action of recycling was similar to the ancient Greek materials’ being reused.
E Just as introducing a clause with a passive verb is preferable, but this sentence uses like and a following noun phrase (ancient Egyptian materials . . .). It appears, somewhat implausibly, to say that the ancient Greek materials were similar to the earlier ancient Egyptian ones in that both were used by Roman, Muslim, and modern builders. Correct answer is C.