A contract called for professional golfer Michelle Wie to endorse Callaway golf products in sell more golf clubs, balls, and shoes bearing the Callaway brand. This contract falls into which category of the sports marketing environment matrix?

a$)$ product$-$based

b$)$ alignment$-$based

c$)$ sports$-$based

d$)$ theme$-$based

Explain your answer, including a definition of the term you choose.