Answer:
Five
Explanation:
The number of orbitals in a sublevel depends on the secondary quantum number l and the magnetic quantum number mₗ.
For a d subshell, l = 2.
The allowed values of mₗ are -2, -1, 0, 1, 2.
Since there are five allowed values of mₗ, there are five d orbitals.
Each d orbital corresponds to one of the five quantum numbers.