Hello
Indigo could be used as dye for people who had no other way to dye their clothes or anything that they want to look pretty.
C. asks the benevolent social planner to step in and fix things
<span>A synapomorphy refers to one specific characteristic of an ancentral species while a symplesiomorphy is the overall traits of the ancentral species (would include many characteristics)
Because of this, we could say that a synapomorphy is just a subgroup of a symplesiomorphy</span>