Adaface Sample Deep Learning Questions

We have trained a model on a linearly separable training set to classify the data points into 2 sets (binary classification). Our intern recently labelled some new data points which are all correctly classified by the model. All of the new data points lie far away from the decision boundary. We added these new data points and re-trained our model- our decision boundary changed. Which of these models do you think we could be working with?
            The 2 data sources use SQL Server and have a 3-character CompanyCode column. Both data sources contain an ORDER BY clause to sort the data by CompanyCode in ascending order. 
            
            Teylor wants to make sure that the Merge Join transformation works without additional transformations. What would you recommend?

A: Perceptron
            B: SVM
            C: Logistic regression
            D: Guassion discriminant analysis