Find the Product $$( \mathrm { m } + 10 ) ( \mathrm { m } - 10 )$$

Multiple Choice

Find the product.
- $$( \mathrm { m } + 10 ) ( \mathrm { m } - 10 )$$

A) $m ^ { 2 } - 20 m + 100$
B) $m ^ { 2 } - 20 m - 100$
C) $m ^ { 2 } - 100$
D) $m ^ { 2 } - 20$