Final answer:
In CRM systems such as Salesforce, the standard object that serves as a junction object is 'Opportunity.' This is because it connects to multiple Contacts and Products via related junction objects like OpportunityContactRole and OpportunityLineItem.
Step-by-step explanation:
An example of a standard object that is also a junction object in the context of CRM (Customer Relationship Management) systems, like Salesforce, is Opportunity. A junction object is used in a many-to-many (N:M) relationship to connect two objects, and it contains lookup fields that reference the objects it connects. In Salesforce, an Opportunity can be related to many different contacts through a junction object called OpportunityContactRole. Similarly, it can also be connected to multiple products through the OpportunityLineItem object.