Write the answers of following questions. A. What do you know about QBASIC? 2 B. Write the steps to open the QBASIC. 2 C. QBASIC stands for ___________. 1 D. What is the use of Run option? 1 E. How to open a new program? 1 F. List the informations displayed by Status Bar. 2 G. How to save a program? 2 H. How to execute a program? 2 I. How to print a program? 2 J. Write the steps to exit from QBASIC. 2 K. Explain Character Set. 2 L. Differentiate between Variables and Constants. 2 M. Explain String constants. 2 N. Identify the valid and invalid constants: 3 -45.56 “World” $67.8 O. Identify the valid and invalid Variables: 3 $Ms Ms$ ABC123 P. How many types of Operators are there? Explain each of them. 1+2 Q. What do you know about Expressions? 2 R. Differentiate between Expressions and Operators. 2 S. Write any two uses of ‘+’ Operator. 2 T. Differentiate between ‘AND’ and ‘OR’ Operator.