Section A- SINGLE CHOICE QUESTIONS (20 marks in total with 2 3tton helloutton each) Button byeutton ye) ddthelleturton), 1. Suppose: (b tton); int a = 1; double d - 1.e; Then the result of the expression 1.5*3+(++a) is: A. 4.5 B. 5.5 C. 6.5 D. 7.5 2. The execution result of the following program fragment is: for (int i = 0; i