The given sentence has been broken up into four different parts. The error, if any, will be in any one part of the sentence. Select the option which contains the part of the sentence which has an error (spelling, grammatical, or contextual). If there is no error, choose option five.
By the first evening, (1) Israeli Air Force fighter-bomber aircraft had bombed (2) roughly 100 Hamas-operated security installations (3) during the first wave of the strike. (4)