Whats the correct answer and please give an explanation so I know how to do the next questions.

Answer:
c^2
Step-by-step explanation:
The area of a square is given by
A = s^2 where s is the side length
This is true because the side lengths are the same length
A = c^2
Answer:
c²
Step-by-step explanation:
Area of a square = side²
= c²
4c is the perimeter, not the area