Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Who is the incumbent that is listed with the candidates listed as marilyn lloyd (d) 57.4% harold w. coker (r) 42.6%?

### Inputs:
table_name: table, columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']

### Response:
SELECT Incumbent FROM table WHERE Candidates = Marilyn Lloyd (D) 57.4% Harold W. Coker (R) 42.6%