The answer to your question is the 4th one
Answer: Sure
Explanation: Whats wrong?
When : When are you going to be home from the party?
What: What do you think would happen if I went to this party ?
Who: Who do you think is going to be at the party?
Why: Why do you think these people are going to be at the party?
Kinda need the diagram/image to give evidence. Light frequency is separated from the singular white beam to the color spectrum from red to blue in frequency strength.