The table shows the number of miles driven over time.

Time (hours) Distance (miles)
4 204
6 306
8 408
10 510

Express the relationship between distance and time in simplified form as a unit rate. Determine which statement correctly interprets this relationship.
(1 point)

The relationship between distance and time can be expressed as a unit rate of 51 miles per hour.

Statement (D) correctly interprets this relationship: "The car is traveling at a constant speed of 51 miles per hour."