17. A rectangular wire loop is at rest in a uniform magnetic field B of magnitude 2 T that is directed out of the page. The loop measures 5 cm by 8 cm , and the plane of the loop is perpendicular to the field, as shown. The total magnetic flux through the loop is
(A) zero
(B) 2×10−3T−m2
(C) 8×10−3T−m2
(D) 8×10−1T−m
