Which is the most abstract term in the following words?

When mapping a speech, listeners often have to infer the thesis by examining the implications of the

main ideas or the supporting materials. Indicate whether the statement is true or false

The least effective way to display a photograph is ________

A) ?on an overhead transparency. B) ?transferred to a handout. C) ?projected using a slide. D) ?enlarged and mounted on poster board. E) ?passing it around among audience members.