Answer:
Edgar is clearly assessing a discussion partner's claim
Step-by-step explanation:
In a discussion it is very important for the parties involved in the discussion to have a good knowledge about the Discussion Topic.
The person involved in discussion should not only ask questions but also give justification for the same(Must be good at reasoning).
As we can see in the attachment Edgar knowledge about the topic is immense and his analytical and reasoning skill is also very good so we can say that Edgar is clearly assessing a discussion partner claim.