An EColi Culture Is Growing in (Rich)liquid Medium

An E.coli culture is growing in (rich) liquid medium.A representative sample of this culture is plated on solid rich medium,and 950 colonies grow on this medium.A sample of bacteria from each of these colonies is then plated on minimal medium,and only 108 of these samples grow into a colony.What proportion of the bacteria in the original liquid culture are auxotrophic?

A) 0.102
B) 0.114
C) 0.796
D) 0.886
E) 0.898