Perform the Indicated Operations $\frac { x ^ { 1 / 2 } } { x ^ { 3 / 4 } \cdot x ^ { - 3 } }$

Multiple Choice

Perform the indicated operations. Write the answer using only positive exponents. Assume all variables represent
positive real numbers.
- $\frac { x ^ { 1 / 2 } } { x ^ { 3 / 4 } \cdot x ^ { - 3 } }$

A) $x ^{17 / 4}$
B) $\frac { 1 } { x^{11 / 4 }}$
C) $\frac { 1 } { x^{17 / 4 }}$
D) $x 11 / 4$