e predictor variable Train is deleted from Model A which results in Model B$.$ Which of the following justifies this choice?

Multiple Choice

The adjusted $R^2$ of Model $B$ is higher than the adjusted $R^2$ of Model $A,$ and the variable is not individually significant in Model $A.$

The adjusted $R^2$ of Model B is lower than the adjusted $R^2$ of Model $A,$ and the variable is individually significant in Model $A.$

The adjusted $R^2$ of Model $B$ is lower than the adjusted $R^2$ of Model $A,$ and the variable is not individually significant in Model $A.$

The adjusted $R^2$ of Model $B$ is higher than the adjusted $R^2$ of Model $A,$ and the variable is individually significant in Model $A.$