By the first sentence of Excerpt 3 the author means that______.A．he is fairly familiar with the cost of advertisingB．everybody knows well that advertising is money consumingC．advertising costs money like everything elseD．it is worthwhile to spend money on
题目
By the first sentence of Excerpt 3 the author means that______.
A．he is fairly familiar with the cost of advertising
B．everybody knows well that advertising is money consuming
C．advertising costs money like everything else
D．it is worthwhile to spend money on advertising