Solve
-The Weights of Five National Football League Football Players $215 \mathrm{lb}$

Solve.
-The weights of five National Football League football players are 237 pounds, 211 pounds, 209 pounds, 243 pounds, 255 pounds. Find the average weight.

A) $215 \mathrm{lb}$
B) $1155 \mathrm{lb}$
C) $230 \mathrm{lb}$
D) $231 \mathrm{lb}$