Final answer:
The speed of the man is 2.57 m/s.
Step-by-step explanation:
To find the speed of the man, we need to divide the distance he traveled by the time it took him. In this case, the man traveled 36 meters in 14 seconds, so his speed is 36 meters / 14 seconds = 2.57 m/s. Therefore, the correct answer is a) 2.57 m/s.