This is a poster for an airline service with the caption, ‘It’s a small world.’

This is a poster for an airline service with the caption, ‘It’s a small world.’ Interpret the strategy and select the best explanation of the viewer’s cognitive response.
This is a question on a quiz I’m taking that’s open note. I am torn between choices a and b. I feel like both apply and I’m not sure which answer is correct.

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