What deployment policy would satisfy these requirements?

A customer wants to deploy its source code on an AWS Elastic Beanstalk environment. The customer needs to perform deployment with minimal outage and should only use existing instances to retain application access log.

What deployment policy would satisfy these requirements?
A . Rolling
B . All at once
C . Rolling with an additional batch
D . Immutable

Answer: A

Explanation:

Reference: https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.rollingupdates.html