I would say A because it was talking about something in the present but what they were talking about was in past. so I would think A
Answer:
low transaction fees and speedier processing
Explanation:
C. OS hardening.
Making an operating system more secure. It often requires numerous actions such as configuring system and network components properly, deleting unused files and applying the latest patches.
The purpose of system hardening is to eliminate as many security risks as possible. This is typically done by removing all non-essential software programs and utilities from the computer.
