You are a specialist in taxonomy about to perform a phylogenetic analysis on a group of imaginary beetles. Assume that you have prior knowledge that taxon A is more distantly related to the others than any of the others are to one another. This means that taxon A would be a good choice for an outgroup.

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.  

to this answer it would be edge enhancement