Classic Load Balancer monitoring

Which of the following tasks would need to be performed if the Classic Load Balancer monitoring requires you to enable access logs?

1.Create an S3 Bucket

2.Attach a Policy to Your S3 Bucket

3. Verify that the Load Balancer Created a Test File in the S3 Bucket

Options

1. Only 1,2
2. Only 2,3
3. Only 1,3
4. All of these