A Company Has Two AWS Accounts: Production and Development

A company has two AWS accounts: Production and Development. There are code changes ready in the Development account to push to the Production account. In the alpha phase, only two senior developers on the development team need access to the Production account. In the beta phase, more developers might need access to perform testing as well. What should a solutions architect recommend?

A) Create two policy documents using the AWS Management Console in each account. Assign the policy to developers who need access.
B) Create an IAM role in the Development account. Give one IAM role access to the Production account. Allow developers to assume the role.
C) Create an IAM role in the Production account with the trust policy that specifies the Development account. Allow developers to assume the role.
D) Create an IAM group in the Production account and add it as a principal in the trust policy that specifies the Production account. Add developers to the group.