Given the same training data in the above question (Buy_Computer dataset), build adecision tree with the following instructions:

a. Use your own calculation to determine the root node. Which attribute should be firstselected? Use entropy calculation to support your decision.

b. Use WEKA to complete the whole decision tree. You need to first prepare the .arff filebased on the provided .csv file.

c. Use your decision tree to predict the class of the following new example: age<=30,income=medium, student=yes, credit-rating=fair.