Answer:
A:

Explanation:
We are given that a metal sheet which is required to make square -shaped traffic sign.
We are given that a square shaped traffic sign is shown with length of on side labeled as x+1.
We have to find an expression which is equivalent to area of metal sheet used in square shaped traffic sign
Length of square shaped traffic sign=

We know that area of square =

Therefore, area of metal sheet used in square shaped traffic sign=

Hence, option A is true.
Answer : A:
