In an unusual move for a Republican, the
president's directive established price controls
(A) the president's directive established price
(B) the president's directive was to establish
(C) the president was successful in the
establishment of controls on prices
(D) the president had instituted controls on
(E) the president established price controls
Kindly share answer with complete explanation.
"In an unusual move for a Republican" is one giant phrase that modifies "the president", which immediately follows the phrase just after the comma.
Think it like this; who made the move; President himself or President's directive; President, right?
A and B out.
D: usage "past perfect" "had instituted"- Past perfect is used only when there are two sequences from the past. Here, there is just one event that occurred in the past. "The act of establishment". Thus, simple past "established" is more apt.
C and E are both correct but C much wordier than E. Also, GMAT prefers phrases like "price control" over "control on prices" likewise for the usage of verb "established" over "establishment of".
E rules- Concision.