Which triangle meets the criteria for the ambiguous case?

A. A triangle has angle measures of 58 degrees and 51 degrees. A side with length 7 is opposite the 58-degree angle.

B. A triangle has side lengths of 4 and 6. The angle between the two sides is 66 degrees.

C. A triangle has side lengths of 5 and 3. The angle opposite the side with length 5 is 84 degrees.