Question

what is the first thing to check on a laptop when troubleshooting an external power issue? power cables device manager battery bios

Explanation:

When troubleshooting an external power issue on a laptop, the first logical step is to check the power cables. This is because external power issues often stem from problems with the physical connection of the power source, like a loose or faulty power cable. Device Manager is for hardware device issues, the battery is related to internal power storage (not external power delivery initially), and BIOS is for system firmware settings, not the first check for external power.

Answer:

A. Power cables