Problem $3.(1$ point$)$

For the function $f$ whose graph is given below, ist the following quantities in increasing order, from smallest to largest.

A: ${\displaystyle \underset{0}{\overset{8}{}}}f(x)dx,$ B:${\displaystyle \underset{0}{\overset{3}{}}}f(x)dx,$ C:${\displaystyle \underset{4}{\overset{8}{}}}f(x)dx,$ D: ${\displaystyle \underset{0}{\overset{4}{}}}f(x)dx$

Answer $($use A$,$ B$,$ C$,$ D$,$ and separate by commas$)$: $$

Note: You can click on the graph to enlarge the image.