The suggested answer is D.
The configuration to restore VPN connectivity should accommodate the specific settings observed in the exhibits. Looking at Exhibit A and Exhibit B, we can see various parameters, such as the peer ID, the proposal 'aes256-sha256', and the necessity for NPU (Network Processing Unit) offloading indicated by 'npu_flag=03'. The configuration in Exhibit D matches these requirements, including NPU offloading and the correct use of 'aes256-sha256'. Therefore, the correct answer is the configuration that aligns with these settings, which is provided in option D.