Which of the Following Statements Concerning the "Talk Test" Is

Which of the following statements concerning the "talk test" is NOT true?

A) During aerobic exercise you should be able to carry on a somewhat stilted conversation.
B) You know you are exerting enough effort to get aerobic benefits if you can sing the Star Spangled Banner while exercising.
C) If you are gasping for air and unable to talk,you are working well into your anaerobic threshold.
D) If you are able to talk but not sing while exercising,you are probably working in the aerobic zone.