The Answer is LOTO. LOTO stands for Lock out/Tag out. When preforming maintenance or repair on machinery it is important to use LOTO or Lock out/Tag out to insure that no one uses the machinery while it is under repair/maintenance. This is important because using a machine while under repair or maintenance could result in serious injury or even death.
"A. You know, of course, that she used to dive for her college swim team." does not have any errors in comma usage. "Of course" is almost always surrounded by commas.
