Which of the following best describes causation?

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.

Why is causation so much more difficult to prove than correlation?