Technology may be available to us 24 hours a day, but it cannot create interference

All but one of the following are true about a theory:

a. It is a series of assumptions about how something works b. It relies heavily on deductive and inductive reasoning c. It is considered informal investigation d. It is an attempt to explain a phenomenon.

If you were constructing an audience-analysis questionnaire and wanted to learn the strength of your listeners' attitudes for or against the use of animals in medical research, which of the following would be the best kind of question to ask?

A. open-ended question B. fixed-alternative question C. leading question D. demographic question E. scale question