Which three operations affect the number of times a trigger can fire? Choose 3 answers

Process Flows (now often referred to as Salesforce Flows) can perform DML operations and updates, which in turn can cause Apex triggers to execute.

Workflow Rules can update fields on a record, and these updates will re-evaluate and potentially re-fire any associated Apex triggers.

Criteria-based Sharing calculations determine record access but do not directly perform DML operations or field updates that would cause a trigger to fire.

Email messages are an output action, not an operation that performs DML or field updates on records in a way that would cause triggers to fire.

Roll-Up Summary fields recalculate when child records are created, updated, or deleted, or when master records are updated, which are DML operations that can cause triggers on the parent object to fire.