Which of the following observations would most weaken the claim that an animal's experiences affect the epigenetics of their offspring?

a. offspring raised by inattentive parents, born to attentive parents, whose dna demonstrates heavy methylation and who then pass this methylation pattern on to their own offspring.
b. offspring raised by moderately inattentive parents, cloned from inattentive parents, whose dna demonstrates moderately heavy methylation and who then pass this methylation pattern on to their own offspring.
c. offspring raised by inattentive parents, born to inattentive parents, whose dna demonstrates heavy methylation and who then pass this methylation pattern on to their own offspring.
d. offspring raised by attentive parents, born to inattentive parents, whose dna demonstrates heavy methylation who then pass this methylation pattern on to their own offspring.