A symmetric star conducting wire loop is carrying a steady state current I as shown in figure. The distance between the diametrically opposite vertices of the star is 4a. The magnitude of the magnetic field at the center of the loop is
(A) \(\frac{μ_0 I}{4\pi a}6[\sqrt{3}-1]\)
(B) \(\frac{μ_0 I}{4\pi a}6[\sqrt{3}+1]\)
(C) \(\frac{μ_0 I}{4\pi a}3[\sqrt{3}-1]\)
(D) \(\frac{μ_0 I}{4\pi a}3[2-\sqrt{3]}\)
