question on mixing lights Help please

Hey guys, i need help in a question about mixing lights. if theres a dude standing on stage dressed in complete white, and 2 lights are shining on him and he appears yellow, what are the 2 lights? i know the answer is red and green but the only options i have are

1. red and blue
2. cyan and yellow
3. yellow a nd red
4. yellow and magenta

help is appreciated thanks guys

 

Depending on what lights you are using, you can buy coloured filters that go over the front, changing the light colour. I'm not sure if you can really substitute any of them colours.

 

Wrong section. Belongs here http://www.sythe.org/forumdisplay.php?f=295

It could be any of 2, 3 or 4 though. Depends on the lights type.