What about the grades?

In the previous chapter, we read that A family came to the orphanage showing the desire to adopt three kids. First Robert was adopted being the genius one then it was time for the second warden to present Robin saying that he would be a better choice to adopt as he could handle Robert in his memory problems on this Mrs. Henry was surprised she asked:

Mrs.Henry: Memory Problems? What's he talking about Honey? (with a weird expression)

Mr. Henry: (to Mrs. Henry) Oh he is right. He explained this to me before we came here. I will tell you everything back home, trust me it's not a big deal

Mr. Henry: (to warden) So mister can you tell me any other reason why we should adopt him I don't see that enough.

Warden: He is a very behaved and understanding kid

Mr. Henry: And what about the grades?

Warden: They are also fine and when he has difficulties he asks Robert

Mr. Henry: Ok, Can me and my wife talk to Robin for a while

Warden: Yeah sure!