What Are Three Main Purposes for the Use of Technology

What are three main purposes for the use of technology in a mathematics classroom?

A) To explore, to check answers, and to teach.
B) To use as a reward, to teach, and to check answers.
C) To check answers, to explore, and to assess student progress.
D) To provide demonstrations, to teach, and to explore.
E) To teach, to explore, and to assess student progress.