Two identical copper wires W₁ and W₂ placed in parallel as shown in the figure, carry currents I and 2I, respectively, in opposite directions. If the two wires are separated by a distance of 4r, then the magnitude of the magnetic field \[\overrightarrow B \] between the wires at a distance r from W₁ is

A. \[\frac{{\mu _0^2{I^2}}}{{2\pi {r^2}}}\]

B. \[\frac{{6{\mu _0}I}}{{5\pi r}}\]

C. \[\frac{{{\mu _0}I}}{{6\pi r}}\]

D. \[\frac{{5{\mu _0}I}}{{6\pi r}}\]

Answer: Option D