Correct answer - "rolling with additional batches" : Rolling with additional batches is the most
optimum deployment policy when a user doesn't want to compromise on the output capacity of the
application but also keep the additional expense incurs to the minimum.
Incorrect:
"immutable" - Deploys the new version to a fresh group of instances
"all at once" - Will bring the capacity down as all of your application instances will be down
for a bit.
"rolling" - Will bring the capacity down as some of your application instances will be down for a
bit.
"blue/green" - This will work by creating an entirely new environment but will cost a lot more
than "rolling with additional batches".