I think it’s b but im not sure
1. The profit/ deficit of a business
2. Distance above/ below the Earth's surface
3. depth of the ocean
4. Timeline of history
5. golf scores
So The Thing Here Is That The Liquids and Gases Are Going In Eatch Other Witch It Probably Reacts To Your Body Inside Or Outside In The Inside You May Not Know It But Outside It Gives You Designs.
Answer:
I always make sure I put everything I know into my education, no matter if I know it or not!