Marco has a $180-$day T$-$bill with a par value of $$1,000,000$ and a price of $$975,170.$ The effective annual yield is commonly used for comparing alternative investments because it takes into account the compounding of interest. What is the effective annual return on Marco's T$-$bill?

a$)5\mathrm{.}15\%$

b$)5\mathrm{.}23\%$

c$)5\mathrm{.}34\%$

d$)7\mathrm{.}95\%$