Suppose That a Survey of 100 Advertisers in U

Multiple Choice

Suppose that a survey of 100 advertisers in U.S. News, These Times, and World found the following. ​
6 advertised in all three
13 advertised in These Times and U.S. News
16 advertised in World and U.S. News
20 advertised in World and These Times
32 advertised in These Times
29 advertised in U.S. News
35 advertised in World
​
How many advertised in U.S. News or These Times?
​

A) 48
B) 96
C) 11
D) 17
E) 18