If interest rates remain unchanged, what is the expected capital gains yield over the next year for Bond $P$ and Bond D$?$

a$.-\mathrm{.}76\%,1\mathrm{.}85\%$

b$.\mathrm{.}56\%,2\mathrm{.}32\%$

c$.-\mathrm{.}89\%,1\mathrm{.}18\%$

d$.1\mathrm{.}05\%,2\mathrm{.}87\%$