Answer:
D
Step-by-step explanation:
[tex] \frac{1}{16} \times \frac{1}{8} \\ \\ = \frac{1}{ {2}^{4} } \times \frac{1}{ {2}^{3} } \\ \\ = ( {2}^{ - 4} ) ({2}^{ - 3} )[/tex]