Sally is conducting a paired-samples t-test. Her sample included 45 pairs of participants. She uses df = 43 to find her critical t-value. (i) Is Sally using the correct df to find her critical t-value? Write yes or no: (ii) Why or why not? Write letter of answer: A. Sally is using the df calculation for an independent samples t-test instead of a paired samples test. B. Sally's df should be 89. C. Sally is using the correct df calculation (n - 1) + (n - 1) D. Sally is accounting for the right number of pairs