Which of the following pairs of numbers is not a pair of equivalent rational numbers?

• A.  \[\frac{13}{2}\] and \[\frac{65}{10}\]   
• B.  \[\frac{15}{36}\] and \[\frac{63}{108}\] 
• C.  \[\frac{4}{5}\] and \[\frac{16}{20}\]                  
• D.  None of these