Aweb site claims that it can improve concentration, problem solving, and creativity through simple game-like experiences "based on neuroscience." before melanie subscribes to the site, she seeks empirical evidence that the experiences have lasting cognitive benefits. she also examines the credentials of the neuroscientists appearing to endorse the site. in this example, melanie is using ) thinking.

Melanie is using "critical" thinking.

Critical thinking is the capacity to think what to do or what to accept. It incorporates the capacity to take part in intelligent and independent reasoning.  

Critical thinking doesn't involve accumulating data. A man with a good memory and who knows a great deal of realities isn't really great at basic reasoning. A basic mastermind can find outcomes from what he knows, and he knows how to make utilization of data to take care of issues, and to look for relevant sources of data to educate himself.

i am pretty sure it is d.