My father does a lot of exercise. Hes still very fat.

“My dad exercises a lot, he’s still very fat.”

⇒ Although my father exercises a lot, he is still fat.

Structure: Despite/ In spite of + N/the fact that + S + V,.. Although… but…

Eg: Despite his illness, he still works overtime.

⇒ Despite the fact that he is ill,… ⇒ Although/ Even though/ Though he is ill,…

A. wrong grammar

B, D wrong meaning of the sentence:

B. My father exercises a lot, so he is very fat.

D. My father is very fat, but he still exercises a lot.