If Two Samples Are Used in a Hypothesis Test for Which

Multiple Choice

If two samples are used in a hypothesis test for which the combined degrees of freedom is 24,
Which one of the following CANNOT be true about the two sample sizes?

A) Sample A = 11; Sample B = 13
B) Sample A = 12; Sample B = 14
C) Sample A = 13; Sample B = 13
D) Sample A = 10; Sample B = 16