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A motorcyclist is traveling on a highway. The table below indicates the mile markers posted along the highway along with the time, in hours, that the motorcyclist reached each marker.

If time $t=0$ indicates the beginning of the trip, the motorcyclist must have reached a speed of $60\, \text{mph} $ at least one time during which time interval?

t (hours) 0 1 2 3 4
Mile marker (miles) 100 155 215 265 320
A

$(0,1)$

B

$(1,2)$

C

$(2,4)$

D

$(2,3)$

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