Question

some emotional responses to visual stimuli appear to involve no deliberate thinking. these emotional responses are said to follow a low road that bypasses the: a thalamus b amygdala c cortex d optic nerve

Explanation:

The "low road" in emotional responses bypasses the cortex. The cortex is involved in deliberate thinking. The thalamus is a relay station, the amygdala is involved in emotional processing (but not what is bypassed here), and the optic nerve is for visual signal transmission. The key is that the low - road skips the area (cortex) related to deliberate thought.

Answer:

C. cortex