Answer:
d. 1
Step-by-step explanation:
To solve for the combination, you just need to remember the formula:
[tex]_{n}C_{r}=\dfrac{n!}{r!(n-r)!}[/tex]
So you just need to fill in the formula:
[tex]_{n}C_{r}=\dfrac{n!}{r!(n-r)!}[/tex]
[tex]_{8}C_{8}=\dfrac{8!}{8!(8-8)!}[/tex]
[tex]_{8}C_{8}=\dfrac{8!}{8!(0)!}[/tex]
[tex]_{8}C_{8}=\dfrac{8!}{8!}[/tex]
[tex]_{8}C_{8}=1[/tex]
