What is the role of Hazelcast's Aggregator framework?

A) To provide built-in aggregation functions

B) To provide filtering and transformation capabilities

C) To allow custom aggregation functions to be written

D) None of the above

Correct Answer : To allow custom aggregation functions to be written

Explanation : Hazelcast’s Aggregator framework allows custom aggregation functions to be written, providing flexibility in how data is processed and analyzed.