In which century was Denis Thériault born?
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
In which century was Denis Thériault born?

### Input:
Denis Thériault (born August 24, 1959) is a Canadian author, playwright and screenwriter of French-Canadian descent..

### Response:

Denis Thériault (born August 24, 1959) is a Canadian author, playwright and screenwriter of French-Canadian descent..
The 20th century