Which of the following is not true about search engine advertising?
A) Spending on search engine advertising constitutes over 45% of all online advertising spending.
B) The top three search engine providers supply over 95% of all online searches.
C) The click-through rate for search engine marketing has been steady over the years.
D) Search engine advertising is the fastest growing type of online advertising.
Answer: D) Search engine advertising is the fastest growing type of online advertising.