The most secure access option among the ones listed is:
WPA2 and AES
WPA2 (Wi-Fi Protected Access 2) is the strongest wireless security protocol currently available, and AES (Advanced Encryption Standard) is a more secure encryption method compared to TKIP (Temporal Key Integrity Protocol) used in older protocols like WPA. WEP (Wired Equivalent Privacy), particularly with 128-bit, is outdated and considered insecure.
Therefore, for providing the best security for a wireless access point, WPA2 combined with AES is the optimal choice.