Jeremy Can't Decide Whether He Should Ask People Whether They

Jeremy can't decide whether he should ask people whether they "very strongly agree," "agree," "disagree," "very strongly disagree," or simply "agree" or "disagree" with statements about the war in Iraq. Jeremy is dealing with the problem of:

A) whether to use single or multiple indicators of a concept.
B) the range of variation.
C) whether to use a ratio or ordinal measurement.
D) whether to use a ratio or interval measurement.
E) whether to use single or multiple dimensions.