Write Each Rate or Ratio as a Fraction in Lowest $75 \phi$

Write each rate or ratio as a fraction in lowest terms.
Change to the same units when necessary.
-Find the best buy on coffee. You have a coupon for $75 \phi$ off on Brand $\mathrm{X}$ and a coupon for $60 \phi$ off Brand $\mathrm{Y}$ .

A) 16 ounces of Brand $X$ for $\$ 5.99$
B) 12 ounces of Brand $\mathrm{Y}$ for $\$ 3.99$
C) 20 ounces of Brand $\mathrm{Y}$ for $\$ 5.99$
D) 18 ounces of Brand $\mathrm{Z}$ for $\$ 4.99$