sat-dog

Choice C is the best answer because it most effectively uses data from the table to complete the claim about the tracks left by two therapods. The table indicates that the set of tracks labeled La Torre 6A has an estimated footprint length of 32.8 centimeters, an average stride length of 5.23 meters, and an estimated mean speed of 6.5–10.3 meters per second. For the set of tracks labeled La Torre 6B, on the other hand, the estimated footprint length is 28.9 centimeters, the average stride length is 5.57 meters, and the estimated mean speed is 8.8–12.4 meters per second. Therefore, the therapod that left the La Torre 6B tracks had a shorter footprint and a longer average stride than the one that left the La Torre 6A tracks.

Choice A is incorrect. While it is true that of the two therapods, the one that left the La Torre 6B tracks had a longer average stride, it didn’t have a longer footprint: the table shows that its estimated footprint length is 28.9 centimeters, while La Torre 6A’s estimated footprint length is 32.8 centimeters. Choice B is incorrect because the table shows that of the two therapods, the one that left the La Torre 6B tracks had a footprint length estimated at 28.9 centimeters, which is shorter than the 32.8 centimeters estimated for the other set of tracks. Moreover, the therapod that left the La Torre 6B tracks had a longer average stride, not shorter: 5.57 meters, compared with 5.23 meters for the other set of tracks. Choice D is incorrect. While it is true that of the two therapods, the one that left the La Torre 6B tracks had a shorter footprint, it didn’t have a shorter average stride: the table shows that its average stride length is 5.57 meters, while La Torre 6A’s average stride length is 5.23 meters.