JEE Advanced 2018 Physics question

Two infinitely long straight wires lie in the -plane along the lines . The wire located at carries a constant current and the wire located at carries a constant current . A circular loop of radius is suspended with its centre at and in a plane parallel to the -plane. This loop carries a constant current in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?

• (A)If , then **cannot** be equal to zero at the origin Correct
• (B)If and , then can be equal to zero at the origin Correct
• (C)If and , then can be equal to zero at the origin
• (D)If , then the -component of the magnetic field at the centre of the loop is Correct