He's being polite? Okay, let me be polite. I should have considered the potential audience when I posted:
No 100% correct answers? Im glad I made it through school before the revisionist teachers shoved that crap down your throat. Just because you can solve a problem more than one way does not mean either way is not 100% correct. They both can be. Let me consider the potential audience and politely provide an example. Add two numbers together to total 4. Which is not 100% correct - 2+2 or 3+1? So perhaps dps answer can be 100% correct.