The correct answer to the question is a "right pentagonal prism."
Here's a breakdown to help you understand why this solid could result in a two-dimensional cross section in the shape of a pentagon:
1. A right pentagonal prism is a three-dimensional shape that has two pentagonal bases that are parallel to each other. When you cut this prism with a plane parallel to one of its bases, the resulting cross section will be a pentagon.
2. The other options, such as a right cone, right triangular prism, and right cylinder, do not have pentagonal bases. Therefore, they would not produce a pentagonal cross section when cut by a plane parallel to their bases.
Understanding the basic characteristics and shapes of these solids can help you visualize how they would appear when cut by a plane. In this case, the right pentagonal prism fits the criteria for producing a pentagonal cross section.
