Final answer:
The XOR operation between the message 'in' and the pad 'open me to read' results in 'sq', which is not listed in the provided options.
Step-by-step explanation:
The XOR operation is a bitwise operation that takes two operands and returns a new value where each bit is the result of the XOR operation on the corresponding bits of the operands. In this case, the XOR operation is applied between the characters of the message and the pad.
To XOR the message 'in' with the pad 'open me to read', you need to align the characters and perform the XOR operation:
MessagePadXOR Result'i''o''s''n''p''q'
Therefore, after XORing, the result is 'sq'. None of the provided options ('iu', 'me', 'mu', 'pn') matches this result, so none of them is correct.