Perv.erse is a word that refers to per.vert action, that is, to alter good taste or customs that are considered healthy or normal. Therefore, the meaning of the word perv.erse can be interpreted as something abnormal, so the most appropriate option to replace it would be the word abnormal. Then the paragraph would read "For some abnormal reason, we children hat ed those marigolds. They interfered with the perfect ugliness of the place; they were too beautiful; they said too much that we could not understand; they did not make sense". So the correct answer is D.
