单选题 Balbir wants to guide a robot along the white squares through this maze. The robot starts on the square marked "Entrance", and must fmish on the square marked "Exit". It can only move FORWARD, TURN RIGHT 90° and TURN LEFT 90°. Which instructions will guide the robot through the maze?

A、 FORWARD 4, TURN LEFT 90°, FORWARD 2, TURN RIGHT 90°, FORWARD 3, TURN RIGHT 90°, FORWARD 5.
B、 FORWARD 3, TURN RIGHT 90°, FORWARD 1, TURN RIGHT 90°, FORWARD 3, TURN LEFT 90°, FORWARD 3.
C、 FORWARD 3, TURN LEFT 90°, FORWARD 1, TURN RIGHT 90°, FORWARD 2, TURN RIGHT 90°, FORWARD 4.
D、 FORWARD 3, TURN RIGHT 90°, FORWARD 1, TURN LEFT 90°, FORWARD 2, TURN LEFT 90°, FORWARD 4.

【正确答案】 C

【答案解析】