In each of the following questions which of the answer figures is exactly the mirror image of the question figure when the mirror is held at the given point

The inner vertex of both the element turn outwards to form new elements. These elements interchange positions. The pentagon gets enlarged and rotates through 180 degree.

As we can see that In figure (4), there are two circles while in other three figures there are two triangles.

NA

From first figure to second figure one of the three designs is deleted and the other two designs rotate through 90° clockwise and half part of each circle gets shaded. Similar changes would occur from third figure to answer figure.

On the basis of given figures in above question , we can see that
From first figure to third figure the design rotates through 180°. Similarly, from second figure to answer figure the design would rotate through 180°.
Hence , figure ( 2 ) will come on the place of ? from answer figures .

Except figure (3) all other figures consist of three line segments. Figure (3) consists of four line segments.

From first figure to second figure the design rotates through 1800

Four part of the outer end lost.