Based on the following information for a bond, what is the bond's coupon rate?

$($EXCEL EQUATION IF POSSIBLE$)$

Years to maturity $25$

Par value $1000$

Interest rate $0\mathrm{.}1$

current price $1200$

Coupon payments are made semiannually.

a$.$

$\mathrm{.}1108$

b$.$

$\mathrm{.}1082$

c$.$

$\mathrm{.}1331$

d$.$

$\mathrm{.}1219$