Roland is a sales associate in a jewelry store. He tries to sell as many expensive pieces as he can because of the commission he earns. He does not really enjoy his work but sees it as a way to earn a living until something better comes along. In this example, Roland is driven primarily by motivation.

extrinsic

Explanation:

Extrinsic motivation: In psychology, extrinsic motivation is defined as an individual's specific behavior that is being driven or operated or directed by any of the external rewards, for example, praise, fame, money, and grades, etc. Extrinsic motivation arises from an individual's outside environment and is considered as opposed to intrinsic motivation.

Example: A girl helps her mother in the kitchen because after that she will be rewarded with her favorite chocolates.

In the question above, Roland is driven primarily by extrinsic motivation.

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hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.