Need help on this. Which is the correct one?

Question 10 1 pts Within a causal diagram consider the following possible pathways from variable A to variable C: 1. A+ B C 2. A - B 3. A B Now consider fitting a regression model where the variable B is included as an explanatory variable. What would the status of the pathway be for each of these scenarios? The pathway would be closed for 2 and 3 and it would be open for 1. O The pathway would be closed for all three scenarios. O The pathway would be closed for 1 and it would be open for 2 and 3. O The pathway would be closed for 1 and 2 and it would be open for 3. O The pathway would be closed for 1 and 3 and it would be open for 2. O The pathway would be open for all three scenarios. O The pathway would be closed for 2 and it would be open for 1 and 3. O The pathway would be closed for 3 and it would be open for 1 and 2