Not Standard Objects

C.

In Salesforce, standard objects are objects that are available by default with the standard functionality of the platform. These objects include commonly used entities such as Accounts, Contacts, Leads, and Opportunities. Custom objects, on the other hand, are objects that are created by users to support specific business needs.

Now, coming to the options provided in the question, out of the five options, only one is not a standard object. The answer is C. Job Applicants. The other four options are standard objects in Salesforce.

A. Opportunities: This is a standard object in Salesforce that represents potential revenue-generating events for an organization. It is used to track sales deals, including the deal amount, close date, and stage.

B. Solutions: This is another standard object in Salesforce that is used to track information related to customer issues and their resolutions. It helps organizations to maintain a knowledge base and provide quick solutions to customer problems.

C. Job Applicants: This is not a standard object in Salesforce. It can be created as a custom object to track job applicants' information and their progress through the hiring process.

D. Accounts: This is a standard object in Salesforce that represents an organization or a company with which a business has a relationship.

E. Campaigns: This is also a standard object in Salesforce that is used to track marketing campaigns and their effectiveness. It helps organizations to measure the ROI of their marketing efforts and make data-driven decisions.

In conclusion, the correct answer is C. Job Applicants, as it is not a standard object in Salesforce.