Answer: Python Puzzler #2930

The answer is B. The program prints:

beep...zap...byte...ping

This answer was checked by running the program for real.

Why?

join glues the items of a list together, putting ‘…’ between each pair.

The code again

sounds = ["beep", "zap", "byte", "ping"]
print("...".join(sounds))

Try it: change one number in the program and predict the new output before you run it.