Games : How do I use the flaming and explosive arrows on Far Cry 4?

I just got enough skill points to get the trade agreement skill on Far Cry 4. Soon after, I purchased the six flaming arrows, six explosive arrows and six normal arrows. Well I was looking around on screen after pulling out my recurve bow and to my utter surprise I noticed that there is no button on screen to tell me how to switch arrows. I play this on 360 btw if that helps. How do I use my new arrows?