The answer is c or a because it definitely doesn’t pass through a vacuum the fastest
Stay on task, late work stacks up fast. Don't be afraid to ask questions. Don't wait to study until right before the test, spread out studying throughout the unit. From someone taking two AP classes, they aren't easy but with hard work, they are worth it in the end.
Usenet is a network of servers in which spreads messages through newsgroups and the regular internet is a series of different servers
