Source: Master The GMAT 2010
The pesticide Azocide, introduced to central valley farms three summers ago, has proven ineffective because other pesticides' chemical compositions already in wide use neutralizing its desired effect.
A: because other pesticides chemical compositions already in wide use
B: because of the chemical compositions of the pesticides already in wide use
C: due to other pesticides already in wide use, whose chemical compositions have been
D: since, due to the chemical compositions of the other pesticides already in use, those pesticides have been
E: because of other pesticides and their chemical compositions already in use, which have been
OA: C
I do not agree on OA.
I believe it should be
F: because of other pesticides already in wide use, whose chemical compositions have been.
OR I can re-write B
B: because of the chemical compositions of other pesticides already in wide use
The pesticide Azocide, introduced to central valley farms three summers ago, has proven ineffective because other pesticides' chemical compositions already in wide use neutralizing its desired effect.
A: because other pesticides chemical compositions already in wide use
B: because of the chemical compositions of the pesticides already in wide use
C: due to other pesticides already in wide use, whose chemical compositions have been
D: since, due to the chemical compositions of the other pesticides already in use, those pesticides have been
E: because of other pesticides and their chemical compositions already in use, which have been
OA: C
I do not agree on OA.
I believe it should be
F: because of other pesticides already in wide use, whose chemical compositions have been.
OR I can re-write B
B: because of the chemical compositions of other pesticides already in wide use
