The ad sales marketing team at Scripps Networks Interactive develops ideas for sellers who in turn sell the ideas in the market to advertisers. In this way, the team creates an advertising platform for advertisers. Which of the following best defines an advertising platform?

a$.$ Basic issues or selling points to be included in an advertising campaign

b$.$ The media vehicles to be used and the schedule for running advertisements

c$.$ Blueprints that combine copy and visual materials to show the sequence of major scenes in a commercial

d$.$ The advertising budget for a specific time period

e$.$ An advertisement's illustrations and layout