Simplify the Expression $$\sqrt { 14 m ^ { 5 } } \cdot \sqrt { 7 m ^ { 17 } }$$

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $$\sqrt { 14 m ^ { 5 } } \cdot \sqrt { 7 m ^ { 17 } }$$

A) $7 m ^ { 12 }$
B) $14 m ^ { 8 } \sqrt { 7 }$
C) $7 m ^ { 11 } \sqrt { 2 }$
D) $7 \mathrm {~m} ^ { 10 } \sqrt { 2 }$