Assume that you are given the following two yields: the yield on a T$-$bill is equal to $4\%$ and the yield on a corporate bond is $5\mathrm{.}5\%.$ What is the relative yield spread of the corporate bond relative to the T$-$bill $($to the nearest second decimal place$)?$

Question $2$Select one:

a$.$

The relative yield spread is equal to $37\mathrm{.}50\%.$

b$.$

The relative yield spread is equal to $137\mathrm{.}50\%.$

c$.$

The relative yield spread is equal to $27\mathrm{.}27\%.$

d$.$

The relative yield spread is equal to $15\mathrm{.}79\%.$

e$.$

None of the other answers given.