Answer:
Option A :  is the correct answer.
 is the correct answer.
Step-by-step explanation:
Given that: 
Height of triangle ABC = 14 meters 
Base of triangle ABC = (20 + 37) meters
Base of triangle ABC = 57 m 
Area of triangle = 1/2 * Height * Base 
Area of triangle =  * 14 * 57 square meters
 * 14 * 57 square meters 
Hence, 
Option A :  is the correct answer.
 is the correct answer.