题目选项分析

Fact 1: Television advertising is becoming less effective: the proportion of brand names promoted ontelevision that viewers of the advertising can recall is slowly decreasing.Fact 2: Television viewers recall commercials aired first or last in a cluster of consecutive commercials far betterthan they recall commercials aired somewhere in the middle.

Fact 2 would be most likely to contribute to an explanation of fact 1 if which of the following were also true?

【选项】The total time allotted to the average cluster of consecutive television commercials is decreasing.