Strengthen Weaken

If it were discovered that Cézanne learned the concept of objective painting from another artist, this finding would challenge the contention that Cézanne:

A pursued goals similar to those of Greek and Roman art.

B was the founder of the modern movement in art.

C respected the attempts of his predecessors to come to terms with nature.

D was familiar with “the art of the museums.”

The question says: C learned from someone else
The passage says: …the modern movement in art begins with the single-minded determination of a French painter to see the world objectively.

We know, for example, that at various stages in the history of art there have been attempts to make art “imitative”; and not only Greek and Roman art, but the Renaissance of Classical art in Europe, were periods of art possessed by a desire to represent the world “as it really is.”

But Cézanne, though he was familiar with the “art of the museums” and respected the attempts of his predecessors to come to terms with nature, did not despair of succeeding where they had failed-that is to say, in “realizing” his sensations in the presence of nature.