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Haru bikes to his friend's house. After visiting for a while, Haru heads home. On the way, he stops at the market to buy a bottle
of water. d(t) represents Haru's distance from his house, in kilometers, after t hours.
Which describes the domain of d(t)?
00≤d (t) ≤ 2.1
00≤d (t) ≤8
00≤t≤ 2.1
00≤t≤8