Sentence Correction

In a plan to stop the erosion of East Coast beaches, the Army Corps of Engineers proposed building parallel to shore a breakwater of rocks that would rise six feet above the waterline and act as a buffer, so that it absorbs the energy of crashing waves and protecting the beaches.

(A) act as a buffer, so that it absorbs

(8) act like a buffer so as to absorb

(C) act as a buffer, absorbing

(D) acting as a buffer, absorbing

(E) acting like a buffer, absorb

OA C

parallelism..... rise and act ...... absorbing and protecting......

act as .. is correct idiom...

would rise ... would act... parallelism.