Answer: asking the individual's friends about his smoking behavior
hope this helped
A because if you care about someone then there opinion should matter.
<span>In this classic experiment, Cannon and Washburn report that when we are hungry, our stomach contracts. <span>To
test this theory, Washburn swallowed a ball with a tube, when the ball
in his stomach was inflated, he did not feel hungry, on the contrary,
when the ball was deflated and his stomach was empty, it contracted
generating a feeling of hunger.
I hope this can help you.
</span></span>