The OPS Team Will Start Using Jira to Track and Approve

The OPS team will start using Jira to track and approve Change Requests in the OPS project. They have these workflow requirements: Requests can be approved by two individuals only. The approvers will change weekly. Jira is connected to your corporate LDAP with Read-Only permissions. What is the best way to structure permissions for the OPS project to support these workflow requirements?

A) Create the group it-approvers in the Jira Internal Directory and have the approvers maintain it.
B) Create a new project role for approvers and have the Project Role (Administrators) maintain it.
C) Request the group it-approvers to be created in the corporate LDAP directory and add it to the Approve Issues permission for the project.
D) Request the group it-approvers to be created in the corporate LDAP directory and have the Project Role (Administrators) maintain it in Jira.
E) Add individual names to Project Role (Administrators) and add this role to the Approve Issues permission for the project.