[单选题]
Two forces are acting on an object as shown in Fig. below*sz-of ,mtbl2 w*sic 5. Whadah 0l l*q,tq; 2ztedvg8mg78t is the direction of the resultant force*gheml 2dg;adtlqqz 0v 7t8, 8?
A. $12^{\circ}$ above -x
B. $78^{\circ}$ above -x
C. $12^{\circ}$ above +x
D. $78^{\circ}$ above +x
