The following table compares HDL level at each level of alcohol consumption to that of non-drinkers using a two-sample (unpaired) t-test. For instance the difference in the mean HDL among those who drink between 1 to 2 drinks per day compared to non-drinkers is -2.90 (95% CI for the difference -7.0, 1.2).

Alcohol drinking status	Difference in means (95%CI)
non-drinker	0.0 (ref)
1 drink or less	0.8 (-3.2, 4.8)
1-2 drinks	-2.9 (-7.0, 1.2)
More than 2 drinks	-4.6 (-7.8, -1.5)

At what level of daily alcohol consumption is there a statistically significant association with HDL level?

Group of answer choices

A. 1 drink or less per day

B. 1 to 2 drinks per day

C. More than 2 drinks per day

D. Cannot determine without more information