what is the $2\mathrm{.}5$ year forward rate $7\mathrm{.}5$ years from now if the $10$ year spot rate is $9\mathrm{.}75\%$ the $6$ year spot rate is $8\mathrm{.}75\%$ and the $1\mathrm{.}5$ year forward rate $6$ years from now is $3\mathrm{.}65\%?$ circle the closest choice

a$.12\mathrm{.}36\%$

b$.16\mathrm{.}28\%$

c$.15\mathrm{.}96\%$

d$.7\mathrm{.}98\%$

e$\mathrm{.}14\mathrm{.}33\%$