In a linear regression problem, we are using “R-squared” to measure goodness-of-fit. We add a feature in linear regression model and retrain the same model.Which of the following option is true?

• A. A. If R Squared increases, this variable is significant.
• B. B. If R Squared decreases, this variable is not significant.
• C. C. Individually R squared cannot tell about variable importance. We can’t say anything about it right now.
• D. D. None of these.