In lecture, which was NOT given as an explanation for why billions of people around the world regularly eat and enjoy foods containing chilli pepper?
a. Humans have an innate preference for spicy food.
b. Over time, people can become used to the sensation of eating spicy food.
c. Seeing others eating and enjoying spicy food encourages people to acquire a taste for it.
d. Similar to how some people enjoy reading sad books or watching scary movies, some people enjoy the feeling of pain caused by eating chilli.