Which of the Following Best Explains How to Find the Test

Which of the following best explains how to find the test statistic for the one-sample sign test?

A) Scores above the median are assigned a plus sign (+) ; scores below the median are assigned a negative sign (-) ; the test statistic is the number of pluses or minuses, whichever occurs most often.
B) Scores are correlated as either positive (+) or negative (-) ; the test statistic is the extent to which scores are positively or negatively correlated.
C) Scores are coded as being consistent (+) or inconsistent (-) with the null hypothesis; the test statistic is the number of pluses or minuses, whichever occurs most often.
D) The variability of scores is compared with the variance stated by the null hypothesis; larger variability is considered a sign that the data are significant.