D. half period because it is the converting of bidirectional current flow to unidirectional currency flow.
The more data that is collected, the more accurate predictions and results can be.
Answer:
A. troubleshooting
Explanation:
Troubleshooting is the process of trying to detect problems with a software or hardware component so as to apply solutions to it.
Therefore, Sarah would need troubleshooting skills to help her test her program to detect all bugs and fix it.