Please solve Q 10

10.    ​Complex numbers whose real and imaginary parts x and y are itegers and satisfy the equation $3x^2-\left|xy\right|-2y^2+7 = 0$

(A)  ​  ​do not exist                                  ​(B)    ​exist and have equal modulus
(C)    ​Form two conjugate pairs            ​(D)    ​do not form conjugate pairs