(A) Consider the following training set in which there are three attributes and two classes. Build the decision tree and generate all the classification rules from the tree. You must show, step by step, how to calculate information gain, etc. during the construction of the tree. Name Age Salary Donor? Nancy 21 37,000 N Jim 27 41,000 N Allen 43 61,000 Y Jane 38 55,000 N Steve 44 30,000 N Peter 51 56,000 Y Sayani 53 70,000 Y Lata 56 74,000 Y Mary 59 25,000 N Victor 61 68,000 Y Dale 63 51,000 Y