There Are Four General Reasons That Support the Hearsay Rule

There are four general reasons that support the hearsay rule. In regard to this:

A) no hearsay evidence is admissible unless the person who made the statement (the declarant) can be cross-examined.
B) it is apparent that the courts intended to exclude all hearsay statements.
C) it can be argued that if these reasons, or most of them, are not present, the evidence should be admissible even if it is hearsay.
D) because the reasons for the rule have not changed, the courts cannot add new exceptions or delete outdated exceptions.