The quantum numbers $n = 3$ and $l = 1$ identify a specific subshell, which is the 3p subshell. However, the question specifically asks for the number of electrons that can fit into 'the orbital' (singular).

According to the Pauli Exclusion Principle, any single atomic orbital (regardless of its size or shape, i.e., regardless of $n$ and $l$ values) can accommodate a maximum of 2 electrons with opposite spins.

Note: If the question had asked for the number of electrons in the subshell ($l=1$), the answer would have been $2(2l+1) = 6$. Since it asks for the orbital, the answer is 2.