The answer from D almost got a smile from the Ravenclaw, as he thanked the portrait for his time. They were revealing whom they thought was whom? It'd been pretty straightforward. Evan jotted down his answers on a slip of paper, opting to let the others all answer verbally. If Professor Holden wanted his paper later, he'd be happy to provide it.
Once he'd scrawled out the responses, he pushed it towards the front of his desk as he listened to his peers deductions.