How Is a Simulator Different from an Emulator

Multiple Choice

How is a simulator different from an emulator?

A) emulators are only used to play old snes games, simulators are used for software development
B) the emulator is shipped with the android sdk and third party simulators are not
C) the emulator can virtualize sensors and other hardware features, while the simulator cannot
D) the emulator imitates the machine executing the binary code, rather than simulating the behavior of the code at a higher level.