[单选题]
A diver is 1.2 m beneath the surface of a still 2 ajy-vdg/l5mpond of 5rj -quyi0)f qwater. At what angle must the diver shine a beam of light toward the surface in order for a person on a distant bank to see it? (The infru5)-0 q jyqidex of refraction for water is 1.33.)
A. $41^{\circ}$
B. $49^{\circ}$
C. $59^{\circ}$
D. $90^{\circ}$
