Which choice best describes data from the table that weaken the stude… | Verbal SAT Question

Population density of cougars by study (individuals per 100 square kilometers)

Researcher	Location	Method	Minimum density	Maximum density	Difference
P. Ian Ross and Martin G. Jalkotzy	Alberta (Canada)	radio-collar tracking	2.70	4.70	2.00
Gregory A. Davidson et al.	Oregon (United States)	scat-detecting dogs	2.31	5.50	3.19
David M. Choate et al.	Utah (United States)	helicopter surveying	5.59	10.24	4.65
Rahel Sollmann et al.	Florida (United States)	infrared camera trapping, GPS tracking of collars	1.46	1.51	0.05

Researchers have used several different methods to determine the population density of cougars (Puma concolor). A student claims that the use of scat-detecting dogs produces the most precise results, with the smallest difference between minimum and maximum densities.

Which choice best describes data from the table that weaken the student’s claim?

David M. Choate et al. reported a density range of 4.65 individuals per 100 square kilometers despite the use of helicopter surveying.

Rahel Sollmann et al. reported a density range that was substantially smaller than that reported by David M. Choate et al.

Gregory A. Davidson et al. reported a density range greater than that reported by some studies that used other methods.

Gregory A. Davidson et al. reported a maximum density of 5.50 individuals per 100 square kilometers, which differed from that reported by some studies that used other methods.