As Shown in the Figure,an Insulated Wire Is Bent into a Circular

Multiple Choice

As shown in the figure,an insulated wire is bent into a circular loop of radius 6.0 cm and has two long straight sections.The loop is in the xy-plane,with the center at the origin.The straight sections are parallel to the z-axis.The wire carries a current of 8.0 A.What is the magnitude of the magnetic field at the origin? (μ₀ = 4π × 10^-7 T ∙ m/A)

A) 75 µT
B) 81 µT
C) 88 µT
D) 110 µT
E) 120 µT