1. The number of lattice points (points with integer coordinates) on the hyperbola $x^{2}-y^{2}=2022$ is
A. 0
B. 4
C. 8
D. 12
$(x+y)(x-y)=2022=2 \cdot 3 \cdot 337$, note that $x+y$ and $x-y$ have the same parity, so this equation has no integer solutions. Therefore, the answer is $A$.