The correct answer is B because the requirement is based on HCP affiliation with an aligned HCO plus a specialty filter. Salesforce Help for Life Sciences affiliations explains that affiliation alignment rules can automatically align affiliated accounts to specific territories. Salesforce also describes territory alignment for affiliated accounts as a way for a user's territory to determine which accounts they can view and manage, with affiliated-account alignment supporting territory assignment through relationships.
In this scenario, the territory is driven by the hospital relationship: Bay Area General Hospital is the major HCO that defines the hospital-based territory. Both HCPs are affiliated with that hospital, but only the oncology HCP should be aligned. Therefore, the correct configuration is an affiliation alignment rule for the territory with Care Specialty = Oncology. This lets the system evaluate the affiliation relationship and apply the specialty constraint before aligning the HCP to the San Francisco Oncology territory.
Option A is incorrect because a geo assignment rule based on zip code would not correctly model the hospital-based affiliation logic. It might align accounts by location, but it does not address the HCP-HCO affiliation relationship. Option C is incorrect because sharing rules control record visibility, not territory alignment. The requirement is automatic territory alignment, so the consultant should configure an affiliation alignment rule with the oncology specialty filter.