Notice that the top and bottom shape is a pentagon.
Recall that a pentagon has 5 edges
Therefore, the total number of edges in the top and bottom is:
[tex]5+5=10[/tex]
Notice that 5 edges connects the top and bottom.
Therefore, the total number of edges is given by:
[tex]10+5=15[/tex]
Therefore, the correct answer is choice D:
15
