Question 1:

which of the following statement is true?

Statement 1. ? = (x - y)²

Statement 2: ? = x² - 2xy + y²

Statement 3: ? = x² + 2xy + y²

(A) Statement 1 is correct

(B) Statement 2 is correct

(C) Statement 3 is correct

(D) Statement 1 and 2 are correct

(E) Statement 1, 2, 3 are correct