How many different d orbitals are within the 3b sublevel?

The 3b sublevel refers to the third energy level (n=3) and contains the d orbitals. There are five d orbitals, which are designated as (d_{xy}), (d_{xz}), (d_{yz}), (d_{x^2-y^2}), and (d_{z^2}). Therefore, within the 3b sublevel, there are five different d orbitals.