In the Following List of Cloned Fragments, Which Are the Fragments

In the following list of cloned fragments, which are the fragments needed to make the longest possible contig with the least amount of overlap? $\begin{array}{c}\begin{array}{lll}Cloned ~fragment\\\hline A\\B\\C\\D\\E\\F\\\end{array}&\begin{array}{lll}Markers~~ present\\\hline M4~~ M5\\\hline M1~~ M2 ~~M3\\\hline M6~~ M7~~ M8\\\hline M3~~ M4~~ M5~~ M6\\\hline M3~~ M4~~ M5\\\hline M8~~ M9~~ M10\\\hline\end{array}\end{array}$

A) A, B, F
B) A, B, C, E
C) B, C, D, F
D) B, C, D, E, F
E) A, B, C, D, E, F