Select the correct statement.
a. the confirmation paradox is concerned with absolute confirmation.
b. the confirmation paradox is concerned with notion of comparative evidence.
c. the problem with carl gustav hempel’s solution to the raven paradox is that one and the same object, say a brown shoe, can confirm to the same degree two mutually exclusive hypotheses (e. g., "all ravens are black" and "all ravens are white"). the problem with the instance condition is that it does not take into consideration the subjectivity of "objective" data.
d. the problem with the raven paradox is that the equivalence condition is incorrect.