They are the same 10 mm in one cm so 15x10=150
Answer: D
Explanation: the argument is not convincing because the authors focus only on facts and data related to bitly links and twitter usage which is not sufficient evidence to support the claim
I would go with A. worried.To me, Milton seems worried because he hasn't yet created a great body of work, and he is 23 already. He feels that he should have created something important by that moment, and he is worried that his life is passing by without him accomplishing anything.