During the lecture of Ch $\mathrm{.}10,$ it was discussed how important prerequisites exist for establishing causal claims. Select ONE of the following statements that BEST outlines one of those prerequisites.

Causes must occur after the effect.

Correlations are only important when effects can be visibly seen and causes CANNOT be seen.

There must be a relationship $($correlation$)$ between the cause and effect.

Correlations are only important when causes can be visibly seen and effects CANNOT be seen.