Use the Product Rule to Multiply $\sqrt [ 3 ] { 343 } \cdot \sqrt [ 3 ] { 729 }$

Multiple Choice

Use the product rule to multiply. Assume all variables represent positive real numbers.
- $\sqrt [ 3 ] { 343 } \cdot \sqrt [ 3 ] { 729 }$

A) $- 2$
B) 63
C) 16
D) $- 63$