Who laid out his philosophy of skepticism in A Treatise of Human Nature?

Which of the following is true about David Bowie?

A. He changed his last name to Bowie because of the knife. B. He began playing saxophone when he was twelve. C. He changed his name so he wouldn't be confused with Davy Jones of the Monkees. D. All of the answers are correct.

Following the decisive battle against the Persians in 490 BCE, between which two cities did Phidippides run 26 miles in order to deliver word of the Greek victory?

A. Sparta and Corinth B. Marathon and Athens C. Persepolis and Rome D. Thebes and Carthage