Two infinitely long wires each carrying current I along the same direction are made into the geometry as shown in the figure. The magnetic field at the point P is
(A) μ0I/πr
(B) μ0I/r(1/π + 1/4)
(C) Zero
(D) μ0I/2πr
Correct option (D) μ0I/2πr
Explanation: