How Many Fields Can be Enabled for Tracking on a Custom Object?

B.

In Salesforce, custom objects are objects that you create to store information that is specific to your organization's needs. When creating a custom object, you can enable field history tracking to track changes made to specific fields in that object.

The number of fields that can be enabled for tracking on a custom object depends on the Salesforce edition you are using.

In Salesforce Enterprise, Performance, Unlimited, and Developer editions, you can enable tracking for up to 20 fields per custom object.

In Salesforce Essentials, however, the limit is 10 fields per custom object.

Therefore, the correct answer to the question is A. 10 if you are using Salesforce Essentials, and B. 20 if you are using Salesforce Enterprise, Performance, Unlimited, or Developer editions.