Every time the attribute A appears, it is matched with the same value of attribute B but not the same value of attribute C. Which of the following is true?

A

$$A \rightarrow (B, C)$$

B

$$A \rightarrow B, A \twoheadrightarrow C$$

C

$$A \rightarrow B, C \twoheadrightarrow A$$

D

$$A \twoheadrightarrow B, B \rightarrow C$$