Which of the Following Is/are True About Dying Declarations

Which of the following is/are true about dying declarations?

A) Dying declarations are never admissible because the person making the statement cannot be cross-examined
B) Dying declarations are never admissible because of the hearsay rule.
C) The person hearing the dying declaration can testify as to what was said, but not the statement's truthfulness.
D) Dying declarations are exceptions to the hearsay rule
E) Both C and D are true.