Explanation:Van Gogh was particularly taken with the peasants he saw working the countryside; ... shorter brushstrokes, and liberal use of paint, he brightened his own palette and ... he sought respite from his emotional suffering while continuing to make art. ... rises sharply above the undulating blue-black mountains in the background.
it could be all of them but van gogh used a lot of technique (form) and its known that there was a lot about his texture of the paint he used to make his backgrounds sort of flowy, so i think that the best answer would be b.
