How does the author advance his purpose in the article?

Select to read "NASA Brain Training Tech Makes Smart Glasses"

AThe author uses logical reasoning to inform of the benefits of

using neurofeedback to increase focus.

BThe author uses the credibility of NASA to support the use of

widespread neurofeedback with professional athletes.

CThe author uses emotional appeals to plead with consumers to try

out the technology.

DThe author uses expert testimonials to argue the effectiveness of

Cyberlearning's products.