If a record meets one criteria, an email should be sent.

Process Builder supports multiple criteria nodes with independent action groups. If a record meets multiple criteria nodes in a single process, the system evaluates each node and executes the associated actions as applicable.

Correct Option:

C. ✅ One Process with multiple criteria nodes is optimal. Each condition can trigger its own actions independently.

Incorrect Options:

A and B. Workflow Rules cannot easily handle multiple branching conditions with independent actions.

D. Creating two processes is unnecessary overhead and adds complexity.

Reference Extract from Salesforce Help – Process Builder:

“Each process can include multiple criteria nodes and associated actions. A record can trigger multiple actions if it meets multiple criteria.”