In simple linear regression, does the choice of explanatory variable x affect the total sum of squares?

In simple linear regression, does the choice of explanatory variable x affect the total sum of squares?

• A. Yes, the total sum of squares depends on x.
• B. No, the total sum of squares is not a function of x.
• C. It depends on the sample size.
• D. Only if x is standardized.

Answer: (B)