To make a movement with your head kind of bobbing down? In the sign of disagreement/agreement
Romanticism
A poetic movement of the late 18th and early 19th centuries that turned toward nature and the interior world of feeling, in opposition to the mannered formalism and disciplined scientific inquiry of the Enlightenment era that preceded it. English poets such as William Wordsworth, Samuel Taylor Coleridge, John Keats, Percy Bysshe Shelley, and Lord Byron produced work that expressed spontaneous feelings, found parallels to their own emotional lives in the natural world, and celebrated creativity rather than logic.
During those months Rachel's mother looked after Aaron with something close to genuine fondness-- not pity, not obligation-- as though Aaron had become the son she always wanted.
This sentence flows very nicely and also makes sense. You can see that the punctuation is proper, the sentence makes sense, and the grammar is correct. With that in mind, that it the correct sentence structure.
Answer:
I believe the answer is C.