Investigators found that the victim had mentioned the threat to her friend twice, once in May 1996, when she proposed to break up with her boyfriend Zhou, who threatened to destroy her capacity. The other time did not say time, only said She was often threatened by Zhou for 6 years. Which of the following facts best supports? ['The victim was threatened by Zhou in May 1996.', 'Zhou threatened the victim for 6 years.', 'The victim was killed by Zhou.', 'Victims are often threatened for breaking up with Zhou.']