The meaning of the word focus is to put ones attention to something.
It should be noted that it's important for individuals to be focused in whatever they do. Being focused is important as it allows people to achieve their goals and aspirations.
Hence when a student is focused on his or her studies, such a student will read and prepare well. It should be noted that such student will attend classes regularly, do the assignments given to him and also study hard.
In this case, the meaning of the word focus is to put ones attention to something.
Therefore, based on the information given, the correct option is C.
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