Technician A says you should use a rosin core solder when repairing electrical circuits. Technician B says you should not overheat the repair. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

## Step 1<br />This problem is about the best practices when repairing electrical circuits. Technician A suggests using rosin core solder, which is a type of solder that contains flux. The flux helps to clean the surfaces of the components and the board, ensuring a good electrical connection. This is a standard practice in soldering, making Technician A's advice correct.<br /><br />## Step 2<br />Technician B advises against overheating the repair. This is also a good practice because overheating can damage the components and the board, leading to poor repair quality. Therefore, Technician B's advice is also correct.<br /><br />## Step 3<br />Since both Technician A and Technician B provide correct advice, the answer is that both Technician A and Technician B are correct.