Which of the following numbers must be added to \[\frac{-5}{16}\]to get \[\frac{7}{24}\] ?

• A.  \[\frac{21}{28}\]                                             
• B.                         \[\frac{-29}{48}\]           
• C.                         \[\frac{15}{48}\]                                             
• D.                         \[\frac{29}{48}\]