How does sample size affect determinations of statistical significance? a) The larger…

How does sample size affect determinations of statistical significance?
a) The larger the sample size the greater the probability that the variable has an effect
b) The smaller the sample size the greater the probability that the variable has an effect
c) The larger the sample size, the more accurate the estimation of the true population value
d) The smaller the sample size, the more confident one can be in one’s decision to reject or retain the null hypothesis.