Question $3(5$ points$)$

In $2005,$ American Express donated one dollar for every new account and five cents for every tr$$nsaction in Target stores to a foundation that was helping victims of Hurricane Katrina. This is an example of which of the following:

$$ a$)$ Licensing and co$-$branding

$$ b$)$ Joint$-$issue promotion

c$)$ Transaction

$$ d$)$ Collaboration for social causes