Which metric reports on how often a channel contributes to a conversion prior to last-click attribution?

Q.4 – Which metric reports on how often a channel contributes to a conversion prior to last-click attribution? [D]

(A) Second-to-last-click attribution

(B) Secondary conversion

(C) Primary conversion

(D) Assisted conversion

Other content can be found by searching the corresponding topic in the station[其他中英文GAIQ题目可以通过站内搜索查找对应标题来定位正确答案]