A presumption of fact, such as that a person may be presumed to be deceased when no one has seen him or her for the statutory period, can

A. not be rebutted because it is one of the few conclusive presumptions that the Supreme Court of the United States has permitted to remain.

B. never be of sufficient strength to prove that a human has actually died.

C. be rebutted by proper evidence, but only in civil cases.

D. lead to a rebuttal of the presumption of death when clear proof is introduced to the court that someone saw the supposedly dead individual within the past year.