In multiple linear regression, which of the following statements is true regarding what should be done first? Check the correlation between explanatory variables. If two explanatory variables are...

In multiple linear regression, which of the following statements is true regarding what should be done first? Check the correlation between explanatory variables. If two explanatory variables are highly correlated, transform one of them. Check the correlation between explanatory variables. If two explanatory variables are highly correlated, remove one of them. Check the correlation between the response variable and each explanatory variable. If the correlation is high, remove the explanatory variable. Check the correlation between the response variable and each explanatory variable. If the correlation is high, transform the explanatory variable. Check the correlation between the response variable and each explanatory variable. If the correlation is high, transform the response variable.