Suppose that the spread duration for a bond priced at $$95$ is $2\mathrm{.}5.$ What is the approximate change in the bond's price if the credit spread decreases by $50$ basis points?

$$1\mathrm{.}19$

$$1\mathrm{.}15$

$$1\mathrm{.}25$

$$1\mathrm{.}22$