We're asked to identify the atomic orbitals (s or p) used to construct the molecular orbital, MO for the given contour MO representation.
Recall that a molecular orbital is formed when 2 atomic orbitals combine.
An s-orbital is spherical, while a p-orbital is shaped like a dumbbell with 3 orientations, px, py and pz.
Based on the given contour representation of a molecular orbital we can see that:
For each of these contour representations of molecular orbitals, identify:
The atomic orbitals (s or p) used to construct the MO