Final answer:
The correct relationship type to associate "Networking Events" and "Venues" in Salesforce, where one venue can host multiple events, but each event is held at only one venue, would be a lookup relationship (c).
Step-by-step explanation:
The relationship type that would best be used to associate the custom objects "Networking Events" and "Venues" in Salesforce, given that an event can only be hosted at a single venue but a single venue can host multiple events, is a lookup relationship (c). This type of relationship is ideal when you want to create a link between two objects, but the records are not directly dependent on each other. A lookup relationship does not enforce record deletion or security in a strict manner, allowing for different sharing rules to be applied to each object if necessary.
Partnering with organizations for event planning and implementation can achieve expanded outreach by marketing to multiple networks, promote diversity among attendees, and combined resources can be more cost-effective. Within a Salesforce environment, effectively creating and managing these events requires proper setup of relationships between objects to ensure seamless operations and data integrity.