Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Entrant | Chassis | Engine | Points |
| --- | --- | --- | --- | --- |
| 1957.0 | Connaught Engineering | Connaught Type B | Alta Straight-4 | 0.0 |
| 1957.0 | Gilby Engineering Ltd. | Maserati 250F | Maserati Straight-6 | 0.0 |
| 1958.0 | BC Ecclestone | Connaught Type B | Alta Straight-4 | 0.0 |
| 1958.0 | Ecurie Demi Litre | Lotus 12 | Climax Straight-4 | 0.0 |
| 1959.0 | British Racing Partnership | Cooper T51 | Climax Straight-4 | 0.0 |
| 1959.0 | British Racing Partnership | Cooper T51 | Borgward Straight-4 | 0.0 |
Question:
What 1957 engine has a Chassis of connaught type b?
Answer:
Alta Straight-4