The Task of Assigning the Proportional Credit to Each Channel

The task of assigning the proportional credit to each channel and consumer touchpoint across all online and offline channels for a desired consumer action is extremely complex. The practice and techniques used to credit or value a particular channel and consumer touchpoint is referred to as

A) channel valuation.
B) service appropriation.
C) marketing attribution.
D) multichannel accreditation.
E) touchpoint compensation.