3. Consider these three C programs: A2q3a.c, A2q3b.c, A2q3c.c. These C programs are provided in the Google Classroom's Assignment 2. Each program works as a producer (similar to Example 3 in Lecture Note 2) and stores data in a shared region. Write a C program (named it as "A2q3_Ans.c") who works as a consumer reading the data from these three shared regions and prints them out on the screen in this pattern, for example, From A2q3a: From A2q3b: From A2q3c: You will see an output on the sereen. Take a sereenshot of your program's output and put here. 225 Operating System 4 3.3) After you have the messages printed on the screen (from 3.2 above), let us run the program "A2q3_Ans" one more time by typing! /A2q3 Ans and press the Enter. You should get this crror message: Explain briefly a reason that we get this error message. A2q1b.c