Which Statement Is Not True If Deciding on the Number

Which statement is not true if deciding on the number of scale categories to use in a non-comparative itemized rating scale?

A) How the data are to be analyzed and used should also influence the number of categories.
B) The smaller the number of scale categories,the finer the discrimination among stimulus objects that is possible.
C) Traditional guidelines suggest that the appropriate number of categories should be seven plus or minus two: between five and nine.
D) If the respondents are not very knowledgeable or not involved with the task,fewer categories should be used.