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Explanation:

The following pattern can be observed:

Step 1: The first two words of the input are swapped with each other. The next two are swapped and so on.

Step 2: Considering the sequence obtained after Step 1, the resulting sequence will have the following pattern:

change constant change constant constant change constant constant change constant
Once the constants have been determined, the first two words from the remaining words can be chosen and swapped with each other and so on.

Step 3: Considering the sequence obtained after Step 2, the resulting sequence will have the following pattern:
constant change constant change constant constant constant change constant change
It can be seen that only four words are changing. The first two words must be chosen and the last two words must be chosen. Both the pairs must now be swapped with each other.

Step 4: The first two words of the output from Step 3 are swapped with each other. The next two are swapped and so on.
Considering the input provided, the following output will be obtained:

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Hence, option (c).