Final answer:
The default entry types for the Marketing Calendar include To Do, Smart Campaign with email, Webinar, and Email programs.
Step-by-step explanation:
The default entry types for the Marketing Calendar are: A. To Do, B. Smart Campaign with email, C. Webinar, and D. Email programs.
A marketing calendar is a tool used by businesses to plan and organize their marketing activities over a specified period. Different types of entries in a marketing calendar help teams coordinate efforts, track deadlines, and ensure a cohesive and well-executed marketing strategy.