Answer: Python Puzzler #2947

The answer is A. The program prints:

byte...bit...ping...pong

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

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