scarlett is designing a package for a candy her company makes. she has cut several cardboard equilateral triangles, squares, rectangles, and regular pentagons to try out her ideas for the package. which 3-d figure and combination of shapes can scarlett use?

a. equilateral triangle prism with two equilateral triangles and three rectangles
b. pentagonal prism with one pentagon and five rectangles
c. rectangular prism with four rectangles
d. square prism with four squares