If one purchases a $7\mathrm{.}5\%$ semi$-$annual paying coupon bond $18$ days after the last coupon payment, the accrued interest $($using a $360-$day year$)$ is approximately:

$$6\mathrm{.}61$

$$1\mathrm{.}88$

$$3\mathrm{.}31$

$$3\mathrm{.}75$