I’ll claim E.
Transcription
《それじゃあとは頼みます》
Vocabulary
それじゃ: well then;
あと+『は』the past, what just happened followed by the topical は;
頼みます【たのみます】五段 v. to request;
Interpretation
I think it means that he thought it was interesting… I’m really not sure… perhaps it’s more along the line of: please ask for me if you need me;