Answer:
The first option from the diagram given represents the triangular prism in the question.
Explanation:
A triangular prism is also known as a pentahedron which comprises of two triangle bases and three rectangular sides.
The net of the triangular prism is formed as a result of unfolding that occurs along the edges and faces as they are laid out in a pattern of two dimensions.
From the given question ; we would see that the first option matches and correlates with triangular prism in question.