The Consumption of Moderate Amounts of Alcohol ________ the Probability

The consumption of moderate amounts of alcohol ________ the probability that people will try to help in an emergency because ________.

A) does not effect;alcohol has no effect on anxiety level
B) decreases;bystanders who have consumed alcohol are impaired in their judgment
C) increases;alcohol reduces anxiety about the reactions of others
D) decreases;alcohol increases anxiety about the reactions of others
E) sometimes increases and sometimes decreases;alcohol has mixed effects on anxiety levels