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Point out the correct statement.

(a) MEMS is a class of very small sensor or actuator devices where small mechanical systems are driven by electricity to indicate a position

(b) The incorporation of low-cost geo-sensors in the form of GPS chips into mobile devices opens the mobile user to a whole range of services based on the client’s location

(c) The iPhone uses the proximity sensor to turn the screen off when a user puts the phone to his face

(d) All of the mentioned

I have been asked this question in an interview for internship.

Question is taken from MEMS in chapter Mobile Cloud and Mobile Web Services of Cloud Computing

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Correct option is (d) All of the mentioned

The explanation: There are many more contexts that can be used in processing client requests and returning relevant information.

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