What is the simplified form of \[\frac{1}{6}+\frac{-3}{5}+\frac{-8}{15}+\frac{2}{3}\]?

• A.  \[3\frac{1}{10}\]                             
• B.                         \[\frac{-3}{10}\]                              
• C.                         \[-3\frac{1}{10}\]                                           
• D.                         \[\frac{3}{10}\]