n whole numbers are randomly chosen and multiplied. Now, match the following lists:

List I	List II
a. The probability that the last digit is 1, 3, 7, or 9 is	p. $\frac{8^{\mathrm{n}}-4^{\mathrm{n}}}{{10}^{\mathrm{n}}}$
b. The probability that the last digit is 2, 4, 6, 8 is	q. $\frac{5^{\mathrm{n}}-4^{\mathrm{n}}}{{10}^{\mathrm{n}}}$
c. The probability that the last digit is 5 is	r. $\frac{4^{\mathrm{n}}}{{10}^{\mathrm{n}}}$
d. The probability that the last digit is zero is	s. $\frac{{10}^{\mathrm{n}}-8^{\mathrm{n}}-5^{\mathrm{n}}+4^{\mathrm{n}}}{{10}^{\mathrm{n}}}$

• A

  $\mathrm{a}\to \mathrm{r};\mathrm{b}\to \mathrm{p};\mathrm{c}.\to \mathrm{q};\mathrm{d}\to \mathrm{s}$

• B

  $\mathrm{a}\to \mathrm{s};\mathrm{b}\to \mathrm{p};\mathrm{c}.\to \mathrm{q};\mathrm{d}\to \mathrm{r}$

• C

  $\mathrm{a}\to \mathrm{r};\mathrm{b}\to \mathrm{q};\mathrm{c}.\to \mathrm{p};\mathrm{d}\to \mathrm{s}$

• D

  $\mathrm{a}\to \mathrm{p};\mathrm{b}\to \mathrm{q};\mathrm{c}.\to \mathrm{r};\mathrm{d}\to \mathrm{s}$