C Programming Question:

Design a C program (Please not C++) to teach multiplication tables. Use the function rand( ) to generate two integer numbers between 1 to 9. Your program will first ask a question, such as: 6 7 = ? The student should then type the answer on the same line. Then your program checks the students answer.

If it is correct, print Very good! and then ask another multiplication question. If the answer is wrong, print No. Please try again. and then let the student try the same question again repeatedly. The loop will end if the student enters -1 as the answer.