guerrero25
Limited access to expertise, along with the lack of easily available pesticides, have led to the uncontrolled spread of chemicals, with hitherto unknown consequences for the environment.
(A)along with the lack of easily available pesticides, have led to the uncontrolled spread of chemicals
(B)along with the lack of easily available pesticides, has led to the uncontrolled spread of chemicals
(C)along with the lack in easily available pesticides, which have led to the uncontrolled spread of chemicals
(D)along with easily available pesticides, has led to the uncontrolled spread of chemicals
(E)along with easily available pesticides, has led to the uncontrollably spreading chemicals
(A) - Limited access to expertise... has led to... Have led is incorrect.
(B) - Why would a lack of expertise + a lack of easily available pesticides (the chemicals) lead to an uncontrolled spread of chemicals. This doesn't make sense and there is no other explanation in this sentence as to why there would be that uncontrolled spread in chemicals, therefore this one is wrong too.
(C) - "...along with the lack in" should be "...along with the lack of" - wrong.
(D) - This is correct. This sentence states that the limited access to expertise along with easily available pesticides would result in consequences for the environment (availability of chemicals + limited access to experitise that would let us know those pesticides would lead to consequences for the environment="hitherto unknown consequences for the environment").
(E) - "uncontrollably spreading chemicals" is the only thing that sets this one apart from the correct (D). Uncontrollably spreading doesn't convey the same meaning as uncontrolled and doesn't support the first part of the sentence.
I'm going to go with D here.
-Ryan