A mosquito flies diagonally from a corner at the floor of a rectangular room, with coordinates (0, 0, 0) to the opposite corner at the ceiling, with coordinates (5.5, 3.75, h) m at a rate of 0.8 m/s. If it takes the mosquito 11 seconds to make the direct flight, what is h?

A. 5.8 m

B. 6.7 m

C. 8.5 m

D. 8.3 m

The answer is :

A. 5.8 m

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