Martin Is Convinced That He Has ESP and Can Read

Multiple Choice

Martin is convinced that he has ESP and can read the minds of his friends. They challenge him and ask him to guess what they are thinking. On the first trial, he guesses correctly and claims that this demonstrates that he has ESP. On the second trial however he guesses incorrectly. When this happens, Martin claims that this does not demonstrate that he does not have ESP, but rather claims that he was not concentrating. The problem with Martin's claim about the test of his ESP is that the test

A) is not tautological.
B) is not falsifiable.
C) is not parsimonious.
D) is too general.