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 27,
Which one of the following might be true about the two sample sizes?

A) Sample A = 14; Sample B = 13
B) Sample A = 12; Sample B = 13
C) Sample A = 15; Sample B = 14
D) Sample A = 20; Sample B = 8