Juan, who is 16, is very motivated in trying to make the olympic swim team. he practices several hours a day and sets very high, but achievable goals in his competitive times for each event. the more improvement he makes the harder he practices. his goal and behavior best illustrates the concept of

Achievement Motivation.

Explanation:

Motivation for achievement can be characterized as the need for performance or achievement of excellence. Juan is very motivated in achieving his goals, he uses motivation to accomplish his swim times.  

Juan will meet his needs by various means and will be driven to succeed, both internally and externally, for various reasons.

Motivation is the fundamental drive for all our actions.

world bank is the correct answer.

the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances