James, who manages his company's website, knows average Internet users limit their search to the first 10 items of the first page of a Google search result page

He spends a lot of time ensuring the website has the right HTML/XML tags and the right keywords in URLs and titles. What strategy is James using to improve the visibility of the company website?
a. Search engine optimization
b. Linear progression
c. Nonlinear branching
d. White spacing

A