The platonic solids in the given options are A. Regular pentagons and E. Equilateral triangles.
The solids that are polyhedrons, all of whose faces are congruent regular polygons and at every vertex, the same number of faces meets are called "Platonic solids"
There are only five types of platonic solids. They are:
The major types of faces that are found on platonic solids are:
Regular polygons with more than 6 sides are not the faces of the platonic solid.
Thus, from the given shapes,
A. regular pentagons, E. equilateral triangles are used as faces of a Platonic solid.
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