13. Three long wires perpendicular to the page are equidistant from each other, as shown in the cross-sectional view above. Two wires carry current into the page, and the third carries current out of the page. All the currents are equal in magnitude. What is the direction of the net magnetic force on wire A due to the other two wires?
(A) Into the page
(B) Toward the bottom of the page
(C) Toward the top of the page
(D) Toward the left
(E) Toward the right