GMAT Sentence Correction (SC) | Re: However a minimal role in causing air pollution, trash pollutes both

let us look at each of the answer options -

Option A - Incorrect.
"However a minimal role in causing air pollution, trash ..."
"trash" is not a minimal role. Hence, incorrect.

Option B - Incorrect.
"With a minimal role in causing air pollution, trash pollutes both land and sea" - Illogical.
the initial modifier ( ... in causing air pollution) does not have any bearing on how trash pollutes land and sea. Two unrelated things.

Option C - Incorrect.
"trash"
...

---