Challenge of the day : Three Aliens Riddle

Question

There are 3 aliens, namely A, B and C. You Know A always tells the truth, B will always lie and C will just pick a random answer (truth / lie). You can ask only 3 Yes or No questions to them. They will answer your question in code-word ‘OLO’ or ‘UZU’, which means ‘Yes’ or ‘No’ – but you don’t know which one means which.
What will be your questions to identify each alien ?

Answer 1

I know you took that from TED-ED riddles

Answer 2

https://youtu.be/LKvjIsyYng8

Answer 3

AND you are trying to get "Question Guru" badge

Answer 4

"which one means which"?? could not figure it out

Answer 5

thanks @SVengat