The primary objection to the use of polygraph tests for lie detection is that

A) the tests are too expensive and time-consuming for practical use.
B) such tests are unnecessary, because most people are just as good as the polygraph is at identifying liars.
C) such tests catch too few liars to be worth the bother.
D) such tests misidentify too many honest people as liars.

The primary objection to the use of polygraph tests for lie detection is that they misidentify too many honest people as liars. This is because the tests measure physiological responses that may be triggered by anxiety, rather than by lying. As a result, people who are anxious or nervous during the test may be wrongly accused of lying, while skilled liars may be able to control their physiological response and pass the test.