The best choice is A.

Screen flows can be built so that one click (or a few clicks) will spawn multiple “Activity” records. For example, a flow could present the onboarding steps, allow agent to enter a partner name, then automatically create the 10 required activities tied to that partner. The flow can loop, bulkify record creation, etc., saving the 20-minutes per activity cost.

It’s cost-effective because once built, agents use the flow repeatedly, no manual recreation.

A macro is weaker here because creating new records (especially several) via macro isn’t really what macros are meant for (they’re more about automating UI steps, not bulk record creation logic).

Einstein Case Wrap-Up doesn’t cover use case of generating required activities in onboarding; it’s not designed for that kind of structured task generation.

Explanation: While a Screen Flow can guide agents through the process of creating activities, it still requires manual intervention for each step, which may not significantly reduce the time and effort needed for each partner onboarding.