Which of the Following Would NOT Be a Particularly Negative

Which of the following would NOT be a particularly negative consideration when regarding a researcher's possible bias?

A) The researcher has an ideological,political,or religious belief that will be supported by the scientific claims being made.
B) The researcher stands to make money if others accept the claims being made.
C) The researcher stands to gain in prestige if others accept the claims being made.
D) The researcher has a PhD,MD,or at least an MS and years of experience in the field in which he is making a scientific claim.