Find the number which when added to \[\frac{1}{8}\] results in \[\frac{5}{18}\].

• A.  \[\frac{11}{72}\]  
• B.                         \[\frac{2}{9}\]                                  
• C.                         \[\frac{4}{7}\]                                                  
• D.                         \[\frac{5}{72}\]