Marco works as a freelance science writer. He wants to improve his productivity. Which of the following steps is he…

Marco works as a freelance science writer. He wants to improve his productivity. Which of the following steps is he most likely to take?

A. build a website highlighting his expertise 

B. take a week off

C. Invest in a better computer and faster connection 

D. take out an advertisement for his services

Is it A? I think it is between A and D??