The two factors of -48 that have a difference of 19 are 16 and -3.
\(16 \times -3 = -48\\\\16 - (-3) = 16 + 3= 19\)
The sum of the factors are
\(16 + (-3) = 16 - 3 = \boxed{\bf{13}}\)
The answer is: C. 13
Hope this helped! If you have any other questions or would like further explanation just let me know! :)
