A Current of 18 a Runs Vertically Up Through a Wire

Multiple Choice

A current of 18 A runs vertically up through a wire that passes through a table.A compass is placed 13 cm due north of where the wire passes through the table.The magnetic field of the earth at this location is 2.6 *10^-5 T due north.Determine the magnitude of the magnetic field at the location of the compass.

A) 3.45 * 10^-5 T
B) 5.37 * 10^-5 T
C) 4.14 *10^-5 T
D) 46.8 ^$\circ$ east of due north
E) 3.80 * 10^-5 T