Nike released what it believes is the best unisex basketball shoe of $2018.$ It has two very different advertising campaigns. The first is focused on comfort, sweat wicking, and balance. The other campaign emphasizes its jump$-$enhancing ability, injury protection, and grip for pivoting. Nike released the two campaigns in order to completely cover which buying influence?

a$.$ Social class

b$.$ Gender

c$.$ Age

d$.$ Family life$-$cycle stage