A network engineer investigated the issue and determined that the backend connections are being closed for long running requests.

How can the network engineer prevent timeouts from occurring and maintain connection reuse between the ALB and the backend nodes? $($Select TWO.$)$

A$.$ Increase the length of the idle timeout period on the ALB.

B$.$ Enable the proxy protocol on the ALB.

C$.$ Enable HTTP keep$-$alive in the EC$2$ instance$$s web server settings.

D$.$ Enable HTTP keep$-$alive on the ALB.