Which of squares P, Q, R, and S are related to the shaded square by line symmetry?

13. Which of squares P, Q, R, and S are related to the shaded square by line symmetry?
a. Squares P, R, and S
b. Squares P, Q, R, and S
c. Squares P and R
d. Squares P, Q, and R
14. Determine whether the two parallelograms are related by line symmetry, by rotational symmetry about point P, by both types of symmetry, or by neither.
a. Rotational symmetry
b. Neither
c. Line symmetry
d. Rotational symmetry and line symmetry