Answer:
a.A pen was bought by Hari
explanation: You start with the Subject
Both would be fine, I prefer to the one that takes most energy first.
if you were writing the essay, I would start with the essay because it uses a lot of energy from your hand.
If you were typing it, I'd start with math because it uses your brain a bit more.
Honestly, I don't really get what you mean by using energy but that was my best.
Answer: babump whoosh all those, and a good title would be My first roller coaster ride, and he felt nervous about being on a roller coaster
Explanation: