Please match the description to the signaling type it corresponds to. (1)events that occur on the trunk, including seizure, wink, and answer (2)tones such as ringing or busy and announcements such as “no longer in service” (3)digits dialed or called party number that can be sstem-specific or variant-specific (I)Address Signaling
(II)Supervisory Signaling
(III)Informational Signaling

A.
(I)-(3);(II)-(2);(III)-(1)

B.
(I)-(1);(II)-(2);(III)-(3)

C.
(I)-(3);(II)-(1);(III)-(2)

D.
(I)-(1);(II)-(3);(III)-(2)