Originaly posted on the GMAT Verbal portion. I would appreciate it if a MGMAT instructor could help me with this question.

Though formerly considered ill-formed and primitive, Henri Rousseau has become an iconic figure of Post-Impressionism for his dream-like canvases painted like he was naive.

A ) Henri Rousseau has become an iconic figure of Post-Impressionism for his dream-like canvases painted like he was naive.
B ) Henri Rousseau's canvases, painted in a naive, dream-like style, later established the artist as an icon of Post-Impressionism.
C ) Henri Rousseau painted canvases in a naive, dream-like style that has become an icon of Post-Impressionism.
D ) Henri Rousseau's canvases were painted in a naive, dream-like style that was later iconic of Post-Impressionism.
E ) the canvases of Henri Rousseau are icons of Post-Impressionism due to being painted in a naive, dream-like style.

The explanations say that choice E uses "due to" incorrectly instead of bcause of. What determines when "due to" should be used as opposed to "because of" ?

Thanks in advance for the reply.

"Due to" modifies nouns; "because of" modifies verbs. Why are they icons? Because of the way they were painted. So we want to modify a verb here.

Thanks Stacy, that is helpful I had some trouble spotting the verb being modified.