COMP 2243 Test 1 Part A: Multiple Choice (Total 20 points. 10 questions, 2 points for each) 1. Which of the following is not a valid Java identifier? 100 points Student Name: a. money_is_ $ b. 2num2 c. Sgrade d. K2 $5 2. Which of the following is a valid char value? a. '$ 'Hi W" d. 3. The value of the expression 9 % 5 is a. 1 b. 1.8 d. None of them 4. The expression (int) 56.55 evaluates to a. 56 c. 56.50