Answer: Python Puzzler #2905

The answer is B. The program prints:

byte...pong...bit...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 = ["byte", "pong", "bit", "ping"]
print("...".join(sounds))

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