When you create a new workbook from a template, an unnamed copy of the template opens?

The statement that when you create a new workbook from a template, an unnamed copy of the template opens is true. 
If you want to open the workbook that you want to use as a template you should click the Microsoft Office Button , and then click Save As.In the File name box, you should type the name that you want to use for the template.

The answer for your specific question is d.