Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 606 discussion

Answer is B. C is wrong because one-zone doesn't maximize durability, it compromises it.

I believe it's C. The following link mentions One Zone-IA offers 99.999999999% durability. Questions says nothing about HA

B Intelligent tiering will automatically transition to S3 One Zone-IA which is not needed for durability.

'Objects also must be readily available at any time and for any length of time'…definitely option B.

B is correct

B is correct C is not correct because data must be durable. C is only for data that can be regenerated.

Durability. Available any time for any duration => B

Minimum Days for Transition to S3 Standard-IA or S3 One Zone-IA Before you transition objects to S3 Standard-IA or S3 One Zone-IA, you must store them for at least 30 days in Amazon S3. For example, you cannot create a Lifecycle rule to transition objects to the S3 Standard-IA storage class one day after you create them. Amazon S3 doesn't support this transition within the first 30 days because newer objects are often accessed more frequently or deleted sooner than is suitable for S3 Standard-IA or S3 One Zone-IA storage. Similarly, if you are transitioning noncurrent objects (in versioned buckets), you can transition only objects that are at least 30 days noncurrent to S3 Standard-IA or S3 One Zone-IA storage. https://docs.aws.amazon.com/AmazonS3/latest/userguide/lifecycle-transition-general-considerations.html

A S3 Glacier is most cost effective

B meets the requirements. No need for intelligent Tiering because of 30 days.