If a mirror is placed on the line MN, then which of the answer figures is the right image of the given figure?

If a mirror is placed on the line MN,

The position of + remains same in the mirror image inside the triangle and and the mirror image for + remains same

The facing of the symbols to the left and right direction changes to opposite direction in mirror image(right facing changes to left and vice versa)

The mirror image of whole figure towards right changes to left as shown in below figure

Hence, the correct answer is Option D