$($Scenario $8-3)$ You're currently deciding exactly where and when ads will be placed, and determining the strategy behind each placement. This takes a while$-$with the explosion of Internet sites, social media, outdoor advertising, and innovative promotions, the options are almost unlimited. In this way, you are:

a$.$ devising a budgeting method.

b$.$ doing advertising research.

c$.$ creating a media plan.

d$.$ setting up account services.