Gregg's Nose Itches as He Is Walking Toward His Telephone

Gregg's nose itches as he is walking toward his telephone to call someone.Gregg phones his friend Maurice who tells him,"Man,we were just talking about you.That's freaky!" Gregg takes this as support for the folk wisdom "your nose itches when people are talking about you." In reality,this is an example of the confirmation bias because

A) Gregg failed to consider the times where his nose itched and no one was talking about him.
B) Gregg continues to believe this even though no evidence for it exists.
C) Gregg is not a scientist and therefore cannot answer the question.
D) the folk wisdom "your nose itches when people are talking about you" is an unfalsifiable question.