Here's a question and a few possible answers: 

Q: Running is great cardio for working out the heart, but the regular muscles it targets are in the what?
Possible A: thighs, legs, movement, use of muscles, agility

Why is "legs" an answer aligned with human common sense? 


the human leg, in the general word sense, is the entire lower limb of the human body, including the foot, thigh and even the hip or gluteal region. however, the ...