Dobson: Some historians claim that the people who built a ring of stones thousands of years ago in Britain were knowledgeable about celestial events. The ground for this claim is that two of the stones determine a line pointing directly to the position of the sun at sunrise at the spring equinox. There are many stones in the ring, however, so the chance that one pair will point in a celestially significant direction is large. Ttherefore, the people who built the ring were not knowledgeable about celestial events . Which one of the following is an error of reasoning in Dobson's argument? ["Statements that absolutely establish Dobson's conclusion are treated as if they merely give some support to that conclusion.", 'The failure of cited evidence to establish a statement is taken as evidence that statement is false.', 'Something that is merely a matter of opinion is treated as if it were subject to verification as a matter of fact.', "Dobson's conclusion logically contradicts some of the evidence presented in support of it."]