Find the Product $$\left( m ^ { 1 / 4 } + m ^ { - 1 / 4 } \right) \left( m ^ { - 1 / 4 } - m ^ { 1 / 4 } \right)$$

Multiple Choice

Find the product. Assume variables represent positive real numbers.
- $$\left( m ^ { 1 / 4 } + m ^ { - 1 / 4 } \right) \left( m ^ { - 1 / 4 } - m ^ { 1 / 4 } \right)$$

A) $1 - m ^ { 1 / 2 } + m ^ { - 1 / 2 } - m$
B) $- m ^ { 1 / 2 } + m ^ { - 1 / 2 }$
C) $m ^ { 1 / 2 } - m ^ { - 1 / 2 }$
D) $m - m ^ { 1 / 2 } + m - 1 / 2 - 1$