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On comparing AES with DES, which of the following functions from DES does not have an equivalent AES function?

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On comparing AES with DES, which of the following functions from DES does not have an equivalent AES function?

(a) f function

(b) permutation p

(c) swapping of halves

(d) xor of subkey with function f

I had been asked this question by my college professor while I was bunking the class.

This is a very interesting question from The AES Algorthm in portion Advanced Encryption Algorithm and Block Cipher Operation of Cryptograph & Network Security

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Correct choice is (c) swapping of halves

Easy explanation: There is no equivalent to swapping of halves in the AES algorithm.

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