Palindrome Question

[752779]

Hello,
can someone help me with this question, I'm struggling to figure this out. I understand that Palandrom reading 5-->3 parent strand and on the complementary strand reads 5-->3 should have the same 4-6 base pairs.
Looking at the answer choices, they seem to be all palindromes. How do I tell the different? Also according to the explanation mutation disrupt at AAGCTT palindrome, but is choice C and D also disrupt the palindrome there as well?

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[sapientnarwhal]

or WT one strand reads AAGCTT, and the complementary strand also reads AAGCTT (5 to 3). With the mutation, the strand reads ATGCTT, but the complementary strand reads (5 to 3) AAGCAT. Therefore they are not palindromic.

The other mutations do not occur in palindromic sequences.

(edit: I didn't check D)