The magnetic field due to a current in a straight wire segment of length \(\mathrm{L}\) at a point on its perpendicular bisector at a distance \(r(r>>L)\)
(A) decreases as \(\frac{1}{r}\)
(B) decreases as \(\frac{1}{r^{2}}\)
(C) decreases as \(\frac{1}{r^{3}}\)
(D) approaches a finite limit as \(r \rightarrow \infty\)