From sea level, a submarine descends 20 feet per minute. Where is the submarine in relation to sea level 5 minutes after it starts descending?
A. 20
B. 5
C. 100
D. -100
E. -20
![From sea level a submarine descends 20 feet per minute Where is the submarine in relation to sea level 5 minutes after it starts descending A 20 B 5 C 100 D 100 class=](https://us-static.z-dn.net/files/dd4/71fd3bf38b9e24f86359b118960442fe.png)