Markthe letter A, B, C or D to indicate the sentence that best combines each pair of sentences in the following questions.
Question 30: Companies spend millions of dollars on advertising. They want to increase their sales.
A. Companies spend millions of dollars on advertising so that they want to increase their sales.
B. Companies spend millions of dollars on advertising, but they want to increase their sales.
C. Companies spend millions of dollars on advertising with the aim of increasing their sales.
D. In order that they want to increase their sales, companies spend millions of dollars on advertising.