Maneesh ate \[\frac{3}{16}\] of a pizza and his brother ate - of it. What fraction of the pizza did they eat altogether?

• A.  \[\frac{3}{16}\]                     
• B.    \[\frac{3}{8}\]                       
• C.  \[\frac{9}{16}\]                     
• D.    \[2\frac{3}{8}\]