|Question 8Verbal

Source Texts

Text
Studies of the population density of cougars (Puma concolor) have yielded a range of results, which may in part reflect differences in the effectiveness of the methods that researchers have used in their studies. If, for example, the use of helicopter surveying tends to lead to overestimates of cougar population density, that may explain why the study by ________
Which choice most effectively uses data from the table to complete the example?
Juan I. Zanón-Martínez et al. required a study area of 1,179 square kilometers, while the study by David M. Choate et al. required a study area of 1,225 square kilometers.
A
David M. Choate et al. reported a maximum density of 10.24 individuals per 100 square kilometers, higher than that reported by several other studies.
B
Randy D. Johnson reported a maximum density of only 2.78 individuals per 100 square kilometers, lower than that reported by several other studies.
C
Gregory A. Davidson et al. reported a maximum density of 5.50 individuals per 100 square kilometers, while the study by Juan I. Zanón-Martínez et al., which used regular camera trapping, reported a lower maximum density.
D