Bird Species from Temperate Regions Must Cope with Relatively Short

Multiple Choice

Bird species from temperate regions must cope with relatively short breeding seasons. A study examined the relationship between blood testosterone level (ng/ml) and the duration of the egg-laying period (months) in temperate bird species. The following scatterplot displays this relationship, after taking the logarithm of each variable:
What would a plausible value be for the correlation between the logarithm of egg-laying duration and the logarithm of testosterone level?

A) +0.2
B) -0.9
C) +0.8
D) -0.4