Random samples of 1546 men and 1678 women have been given a scale that measures support of legal abortion. Men average 12.45 and women average 12.46, and the difference is significant at the 0.05 level. What can we conclude?

a. There is an important difference between men and women on this issue.
b. Because of the large sample sizes, these results may be statistically significant but trivial.
c. The difference should be re-tested with a one-tailed test.
d. The difference should be re-tested at a higher alpha level.