In an Independent Samples Design, the Dog's Mean Was 54 $\alpha$

Multiple Choice

In an independent samples design, the Dog's mean was 54.0 and the Cat's mean was 53.9. Larger scores are better. A t value of 2.50 was calculated and an $\alpha$ level of .05 adopted. Which conclusion is appropriate with a 2-tailed test?

A) If df = 5, Dogs are significantly better than Cats.
B) If df = 4, Cats are significantly better than Dogs.
C) If df = 10, Dogs are significantly better than Cats.
D) If df = 8, Cats are significantly better than Dogs.
E) If df = 9, Dogs are not significantly different from Cats.
F) Not enough information is given information required is