RND question

I know this is a simple command to do but I have not been able to find a tutorial that would lead me to doing this, and my Qbasic knowledge is quite limited.

Basically, I would like to make a command that lists a random combination of animals. It will ask me how many animals I would like to choose from, lets say 3. And from a pre made list, it will print 3 random animals from that list. I know it's a simple process but for the life of me I cannot figure it out. Any help would be greatly appreciated