Final answer:
To meet the Frye standard, evidence must have gained general acceptance in the scientific community. This criterion is specific to the admissibility of scientific evidence, distinct from other legal principles such as proving guilt or reaching a jury decision.
Step-by-step explanation:
To meet the Frye standard, this must happen: a) Presenting evidence that has gained general acceptance in the scientific community. This standard is used to determine the admissibility of scientific evidence in a court of law. It requires that the scientific technique or principle from which the evidence is derived must be accepted as reliable by the relevant scientific community.
The other options listed, such as demonstrating the defendant's guilt beyond a reasonable doubt, having a jury reach a unanimous decision, and establishing a motive for the crime, are related to different aspects of legal proceedings. Option b) pertains to the burden of proof required in criminal cases, while option c) relates to the jury's decision-making process, and option d) involves establishing a rationale for the alleged criminal behavior.