A Researcher Selected a Sample of 24 Participants and Observed

A researcher selected a sample of 24 participants and observed their behavior at two times.The result of a related-samples t test at a .05 level of significance was t = 2.68.Which of the following correctly describes the result of this test?

A) A related-samples t test is the correct test for this study; the result of the test is not significant.
B) A related-samples t test is the correct test for this study; the result of the test is significant.
C) The result of the test cannot be appropriately interpreted because the related-samples t test was not the correct test for this study; the researcher should have computed a two-independent-sample t test.
D) The result of the test cannot be appropriately interpreted because the related-samples t test was not the correct test for this study; the researcher should have computed a one-sample t test.