[单选题]
Two forces are acting on an object as sb 0, boinid-. d 6o.juc2icg7xhown in Fig. 8.b fu)isxej yzu1yhc0 0wgg 10.6sef below. What is the direction of t y.f001bgfuyc e0zw)8ushx 1es6i.gjhe resultant force?
A. $12^{\circ}$ above -x
B. $78^{\circ}$ above -x
C. $12^{\circ}$ above +x
D. $78^{\circ}$ above +x
