Bunuel
According to project managers, the recent decrease in Project Phoenix funding
so that it was the lowest in a decade signals that public interest in identifying sources of extraterrestrial intelligence is waning.
(A) so that it was the lowest in a decade
(B) so that it was the lowest decade-long level
(C) to what would be the lowest in a decade
(D) to a decade-long low level
(E) to the lowest level in a decade
OFFICIAL EXPLANATION
E
Choices (A) and (B) both have the pronoun "it", presumably referring to the newly low level of funding. While we can deduce what "it" must refer to, sentence. Since "it" refers to something that isn't in the sentence, (A) and (B) can be eliminated.
(C) is incorrect due to the word "would". That implies something hypothetical, whereas the sentence is referring to a decrease that has actually happened. (D) suggests that the low level will last (or has lasted) for a decade, while the sentence refers to a "recent decrease" to a certain low level at one point in time. That leaves only choice (E), which has the "lowest level" at one point in time, and no problems with a pronoun. using the pronoun is only correct when the noun it refers to is present in the