According to Ryan and Deci's theory, the basic need of competence centers around effectiveness. Which of the following slogans aptly describes their concept?
a. the U.S. Army slogan, it's important to "be all that you can be"
b. Discover's by-line, It pays to discover"
c. Samsung's "Turn on Tomorrow"
d. Saab's slogan, "whether you think it's different or expected, you're right"
a
Psychology