The table below shows some musical note symbols and the duration lengths of these note symbols.
Accordingly, what is the sum of the duration lengths of the musical note symbols given above?
A) $\frac{3}{2}$
B) $\frac{7}{4}$
C) $\frac{5}{4}$
D) $\frac{13}{8}$
E) $\frac{15}{8}$