Express $0\mathrm{.}00098760$ meters in scientific $($exponential$)$ notation with the correct number of significant figures in the answer:

a$.9\mathrm{.}8760{10}^4$

b$.9\mathrm{.}876{10}^{-4}$

c$.9\mathrm{.}876{10}^4$

d$.9\mathrm{.}8760{10}^{-4}$