Which describes what an outside observer at rest would observe about a spaceship that speeds up and approaches the speed of light?
A
Time moves faster on the spaceship, and the length of the spaceship decreases.B
Time moves faster on the spaceship, and the length of the spaceship increases.C
Time moves more slowly on the spaceship, and the length of the spaceship decreases.D
Time moves more slowly on the spaceship, and the length of the spaceship increases.