Rosalie is training for a marathon. She jogs for 30 minutes at a rate of 5 miles per hour, then she decreases her speed over a period of time and walks for 60 minutes at a rate of 3 miles per hour.
What is the range of this relation?
A.
0 ≤ y ≤ 5
B.
y ≤ 5
C.
y ≥ 0
D.
3 ≤ y ≤ 5
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