The correct answers are:
4 lines of symmetry, and yes, 90 degree rotational symmetry.
Step-by-step explanation:
Lines of symmetry are lines through which a figure an be folded and be the same on each side of the fold. This figure can be folded in half horizontally, vertically, and through both diagonal; this is 4 lines.
Rotational symmetry means you can turn a figure and have it look the same. This figure can be rotated multiples of 90 degrees and look the same.