Match each function of an item in column A with its suitable item in column B.
1 – C, 2 – B, 3 – D, 4 – A
1 – B, 2 – C, 3 – D, 4 – A
1 – A, 2 – D, 3 – B, 4 - C
1 – D, 2 – A, 3 – C, 4 – B