To configure a workflow that can be approved by any one member of a designated group, you should use the Manage Workflow Groups tool. This functionality allows the creation of dynamic groups whose members can act as approvers in workflows. When such a group is assigned to a workflow, the approval request is sent to all group members, but only one member needs to take action to approve the workflow.

Options A, B, and C are not suitable for this requirement:

A. Manage Permission Groups

This tool is used to define groups for permission purposes and does not directly relate to workflow approvals.

B. Manage Dynamic Roles

Dynamic Roles are used to assign roles based on certain criteria but are not designed for grouping multiple users for workflow approvals.

C. Manage Workflow Requests

This tool is used to monitor and manage existing workflow requests, not to configure approval groups.