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 | Chassis | Engine | Tyres | Points |
| --- | --- | --- | --- | --- |
| 1957.0 | Cooper T43 | Climax L-4 | D | n/a1 |
| 1958.0 | Cooper T45 | Climax L4 | D | n/a2 |
| 1959.0 | JBW Type 1 | Maserati L4 | D | 0 |
| 1960.0 | JBW Type 1 | Maserati L4 | D | 0 |
| 1961.0 | JBW Type 2 | Climax L4 | D | 0 |
Question:
What is the tyres with a year earlier than 1961 for a climax l4 engine?
Answer:
D