A Researcher Isn't Sure Whether 60-Year-Old Women, the Target Population

A researcher isn't sure whether 60-year-old women, the target population of the research, will understand the wording of a questionnaire's 50 items assessing knowledge of symptoms of myocardial infarction in women. Consequently, the researcher might logically decide to do which of the following?

A) Provide a small glossary defining some of the more technical terms on the questionnaire.
B) Conduct a pilot of the questionnaire.
C) Use a Q-sort methodology to prioritize the essential questions and decrease the questionnaire down to 20 items.
D) Ask a content expert to evaluate the readability of the questionnaire.
E) Arrange for several radio and TV public-service announcements, informing the public of the symptoms of myocardial infarction in women.