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

### Instruction:
who is the entrant when the points is 42 (45) and the chassis is brabham bt20?

### Inputs:
table_name: table, columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']

### Response:
SELECT Entrant FROM table WHERE Points = 42 (45) AND Chassis = brabham bt20