Multiple dependency in SQL

There is such dependence R (A, B, C) which is presented in the table below: ABC

1. ABC
2. 1 2 3
3. 1 3 2
4. 1 2 2
5. 3 2 1
6. 3 2 3

The question is: Which of the following multi-valued dependencies DO NOT satisfy R

1. BC ↠ A
2. BC ↠ C
3. C ↠ A
4. A ↠ B ✔

The correct answer is the last, but why I don’t understand. Please explain to me who can, as PS