Which of the following is an exception to the Hearsay rule?

The hearsay rule generally prohibits the use of statements made outside of the court as evidence to establish the truth of the matter asserted. However, there are certain recognized exceptions to this rule, one of which is the "dying declaration." This exception allows a statement made by a person who is on the verge of death to be admissible in court.

The rationale for this exception lies in the belief that individuals who are aware that their death is imminent are more likely to speak truthfully because they have no reason to lie. The dying declaration must usually pertain to the cause or circumstances of their impending death, making it particularly relevant and reliable in contexts such as homicide cases. This helps ensure that significant and truthful testimony can be considered by the court, thereby serving the interests of justice.

The other options do not fit within the established exceptions to the hearsay rule. Witness's personal opinions, testimony based on assumptions, and evidence unsupported by facts lack the necessary criteria to be considered reliable or relevant, thus they do not qualify under the exceptions like dying declarations do.