Your answer would be B...
Answer:
Extension: Produced by the sartorius and quadriceps femoris group of muscles.
Flexion: Produced by the biceps femoris, semitendinosus, and semimembranosus muscles.
Explanation:
True, that's why its known as a ''complex trait'', which mean that is usually caused by a mutation in gene.
I don’t like the meal plans to much u can only get canned foods and never sweets. They don’t include necessities either u can’t get tampons, deodorant or combs