Which choice most effectively uses data from the table to support Mac… | Verbal SAT Question

Myoglobin (Mb) Levels in the Cardiac Tissue of Three Teleost Species

Species	Heart tissue color	Average Mb level	Standard deviation of Mb level	Number of healthy fish observed
Bunocephalus coracoideus	red	18.02	0.59	3
Chitala chitala	red	4.75	1.07	4
Pantodon buchholzi	white	0.02	0.01	4

Myoglobin (Mb) is a protein that primarily aids in oxygen storage and diffusion across the mitochondrial membrane in cardiac muscle cells; these are necessary functions in most vertebrates’ hearts. However, after examining several teleost species, Macqueen et al. concluded that a white heart tissue color is a direct indicator that a species has an almost complete absence of myoglobin in its cardiac muscles.

Which choice most effectively uses data from the table to support Macqueen et al.’s conclusion?

Greater average Mb levels in a certain species were associated with greater variance in Mb levels among individuals of that species.

On average, B. coracoideus had higher Mb levels in their cardiac tissue than C. chitala and P. buchholzi had.

P. buchholzi had very low Mb levels in their cardiac tissue.

Less variation in Mb levels was observed among P. buchholzi individuals than among B. coracoideus and C. chitala individuals.