Which of the Following Statements Is Not True

Which of the following statements is not true?

A) For probability samples,sampling error can be reduced by decreasing the sample size.
B) Nonsampling error is a tendency toward error in one direction or the other and can be present even if a complete census is taken.
C) In probability sampling,each element in the population has some (nonzero) known or calculable chance of being included in the sample.
D) In nonprobability sampling,not everyone in the population has a chance of being included in the sample.
E) Nonprobability techniques discussed in the text include convenience,quota,purposive,and judgment sampling.