Answer C is the technically correct selection. AES is the strongest cipher listed for WPA2-PSK. WPA2 uses CCMP based on AES for strong confidentiality and integrity compared with legacy TKIP, RC4, and WEP approaches. This aligns with Cisco CCNA 200-301 v1.1 because the exam blueprint requires engineers to recognize operational behaviour from configuration symptoms and topology requirements. WEP and TKIP are obsolete, and RC4 is associated with older insecure wireless encryption. Treat the distractors carefully: most are real Cisco terms, but they solve a different problem or operate at a different layer. The selected answer is the one that would be used by an engineer on the device or in the design to produce the outcome stated in the question.
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