Candice wants to know how tall the streetlamps are in her neighborhood. On a foggy evening, she
measures 30 feet from a streetlamp down a flat sidewalk. She sets up a laser pointer on the
ground so that its beam hits the top of the light. Then she has her father, who is 6 feet, 2 inches
tall, stand between the light and the laser pointer. When he is 121 inches away from the laser, the
beam just barely touches his head. To the nearest inch, how tall is the streetlamp? Assume that
the streetlamp and the man are both standing perpendicular to the ground.

A. 589 inches

B. 298 inches

C. 220 inches

D. 111 inches