Plz tell the answer I I'll mark u as the brainliest

What tool can discover and report computer errors and conflicts that occur when you first turn on a computer and before the operating system?

If your accelerator suddenly gets stuck what should you do

2pointswho was mikhail gorbachev? oa. a russian leader who opposed a coupob. a polish leader who founded the labor union "solidarityoc. a soviet leader who called for a closer relationship with the unitedstates, economic reform, and a more open societyd. a soviet leader who called for more oppression in the soviet union