I am having trouble understanding this unit!

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

Anyone know? will mark brainliest if correct

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.