So a is the contrary to the question, we can eliminate that.
b is sexist and biased.
c is very plausible and likely.
d is an incorrect generalization.
so I'd go for c since those are mental illnesses
Answer:
they've found that exercise improves blood flow to the brain, feeding the growth of new blood vessels and even new brain cells, courtesy of the protein BDNF, short for brain-derived neurotrophic factor. BDNF triggers the growth of new neurons and helps repair and protect brain cells from degeneration.
Explanation: