I believe C is the correct answer, the rest of these options are facts.
Popcorn. The Native Americans didn't have any way to make it until the English came over with popcorn :)
Answer:
hobbies are activities you enjoy to help you relax or for pleasure; you can use your hobbies to your benefits (for example, making a quilt and submitting it to the craft fair, receiving a reward, and to your choosing sell it for profit).
Explanation:
Obama talks about different professions in the speech, they aren't just limited to science or writing. Also he is not saying that you should take specific classes, but rather you should try and do your best in every class, because you never know which class may provide you with inspiration or the skills you need later in life.
