In the Equation for the Standard Deviation of the Sampling $\frac{s}{\sqrt{n}}$

In the equation for the standard deviation of the sampling distribution, $\frac{s}{\sqrt{n}}$ , where s is the standard deviation and n is the sample size, how could one get more precise estimates that differ less from one another?

A) increase s to expand the distribution
B) increase the sample size (n) because as the denominator increase the resulting value decreases
C) decrease the sample size (n) because as the denominator decreases the resulting value decreases
D) collect data that are not skewed