Help!! (Question in picture)

In the figure dhg fhe which statement is true by cpctc

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

Which expression is rational? 6. , square root two, square root 14, square root 49