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Two infinitely long wires carrying current are as shown in the figure below. One wire is in the $y-z$ plane and parallel to the $y$-axis. The other wire is in the $x-y$ plane and parallel to the $x$-axis. Which components of the resulting magnetic field are non-zero at the origin ?

1. $x, y, z$ components
2. $x, y$ components
3. $y, z$ components
4. $x, z$ components