You’re building a company website from the ground up. What is the first thing that you should do?

You’re building a company website from the ground up. What is the first thing that you should do?
  A)  Decide on a general design and website architecture.
  B)  Define your buyer personas.
  C)  Build landing pages to convert future visitors to leads.
  D)  Keyword research–decide what keywords you plan to optimize your website for.