In the image, Green Wheat Fields, Auvers by Vincent van Gogh, which of the following elements was not used to create the principle of harmony?

A. Colors
B. Form
C. Line
D. Texture
Is the answer B?

Can anyone help me ?

Sorry -- but I know very little about art.

There's plenty of form, so I wouldn't say it's B.

I'd say A because there seems to be mostly green and blue with a smidge of white and yellow.
http://shop.nga.gov/item/589540/vincent-van-gogh-green-wheat-fields-auvers-poster/1.html?gclid=CIio9NSb5MACFWELMgodth8Aug

SO the answer is A?

Actually the answer was B I got in trouble with my teacher for saying it was And now I got a D.

Sorry. Art is interpretation in the eyes of whoever looks at it. Telling someone this is right and that is wrong regarding art and poetry is really awful, in my opinion.

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