Which of the four statements refers to a conditional probability when selecting an adult person from the U.S population at random? (The probabilities are estimated based on a representative sample.)

a. There is a \(93 \%\) probability that the person favors universal background checks for gun sales.

b. There is a \(43 \%\) probability that the person owns a gun.

c. Given that the person is a gun owner, there is an \(87 \%\) chance that the person favors universal background checks.

d. There is a \(37 \%\) chance that the person is a gun owner and supports universal background checks.