1991 Nissan 240SX CV joints or axel bad?

When I'm at a complete stop and put the car in gear, I hear clunking noises(I can feel the right below the gas and brake pedals or somewhere close.). I notice these same clunking noises when I'm turning and accelerating.

So, is it the cv joint, axel, or perhaps the transmission?
If it's either or, how much would it cost to get it fix?
What is cheaper fix, cv joint or axel? Thanks.