Final answer:
The line that shows people see what they want at Loch Ness is: "Tourists tend to interpret ripples in the water as Nessie sightings." This phenomenon is known as confirmation bias.
Step-by-step explanation:
The line from the text that best demonstrates the concept that people tend to see what they want to see when touring Loch Ness is option c) "Tourists tend to interpret ripples in the water as Nessie sightings." This line clearly illustrates how visitors' perceptions are influenced by their desire to witness the Loch Ness Monster, often interpreting simple ripples as sightings of the infamous creature. Such a phenomenon is commonly referred to as confirmation bias, a psychological tendency for people to interpret information in a way that confirms their preexisting beliefs or expectations.
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