Which of the Following Is True About Witnesses Who Attest

Which of the following is true about witnesses who attest to a will?

A) The witnesses must be close family members.
B) The witnesses need not be family members, but must have known the testator for a reasonable length of time.
C) If the witnesses are beneficiaries under the will, most states either ignore the will provisions in favor of the witnesses, or invalidate the entire will.
D) The witnesses must witness the writing of the will and the testator's signing of the will.
E) The witnesses cannot be witnesses for wills of more than one person within the same family.