Which of the Following Statements Seems to Be That of a Rationally

Which of the following statements seems to be that of a rationally ignorant person?

A) I am not sure which of the soups are more nutritious and I'm in a hurry, so I will opt for the one with more vegetables in it.
B) I always compare prices and buy the good at the store where it has been priced the cheapest.
C) I don't know much about the candidates' views on defense, but he has better charisma than she does and so I will vote for him.
D) The male candidate has a much softer defense strategy than the female candidate, therefore I have decided to vote for her.