I believe you got the correct answer D.
I actually looked up the problem on quizlet. It reads, “because each element has a different set of emission colors from the emission spectrum. They have different energy level spacing and when the electrons get excited, they go to different energy levels because of the different spacing.”
If u want to view where I got this answer from, go to quizlet and type up Flame Test Lab. There should be 8 terms in the set.
Anyways, I hope that this helps! Have a wonderful day :)
