While conducting research, you find the following pieces of evidence: 1. "As a result of my research, I believe that the fictional works of Bret Harte influenced Jack London's writing most strongly."- Betty Boynton (No sources were listed as documentation.)

2. "Jack London is quoted as saying on frequent occasions that he was influenced the most by Herman Melville." (Three sources were listed as documentation.)

Which piece of evidence above is the most reliable?
If an author refers to Shakespeare's line "to be or not to be" from Hamlet, he is using .