Answer:
Nationalism was a great cause of World War one because of countries being greedy and not negotiating. Nationalism shows you are proud of your country and want it to be the best. A lot of causes all linked back to countries all wanted to be better than each other.
Explanation:
Smoking actually increases certain infections.
Seeing one-eyed monsters would be a hallucination. Believing that you are Christopher Columbus would be a <span>delusion</span>.
The correct answer is REASON
The Greeks argued that our senses are faulty and cannot really be trusted. There is even an anecdote that a Greek teacher said there is no movement, and a student got up and started moving, and got scolded by the teacher: you need to argue by reasoning, not by showing things to our senses which can be fooled.
Only our reason cannot be fooled, they argued.