Ursa Major Solar wants to know which of its marketing efforts are helping the team win opportunities. What should an administrator configure to provide these insights?

Campaign Influence links opportunities to the marketing campaigns that contributed to them, allowing businesses to track the return on investment of their marketing efforts and attribute revenue accurately.

List Email Activities track interactions with bulk emails but do not provide a direct mechanism to connect those interactions to opportunity revenue contribution.

Mapping Custom Lead Fields is used to transfer data from lead records to other objects upon lead conversion and does not provide insights into campaign effectiveness on opportunities.

Campaign Hierarchy organizes campaigns into parent-child relationships for reporting on campaign groups, but it does not, by itself, determine the influence of individual campaigns on opportunities.