Results when leisure time and available tools allow us to engage in creative acts.
a. crowdsourcing
b. affective computing
c. social networking
d. cognitive surplus

d. Cognitive surplus

Explanation:

A cognitive process is a process by which one gains knowledge. This is done by understanding information and making sense of it. Cognitive surplus means that a person has more cognition to give to learn something.

Cognitive surplus takes the form of sharing information by which people gain knowledge. This makes us engage in creative acts.

explanation:

with the profits from the european sales, merchants purchased europe's manufactured  goods, including tools and weapons. then the merchants shipped those manufactured  goods, along with the  american  sugar and rum, to west africa where they were bartered for  slaves.

answer; role-taking;