Question

Arrange the following data types available in C language according to their size (smallest to largest): 
A. signed long int 
B. long double 
C. unsigned char 
D. unsigned int 
Choose the correct answer from the options given below:

• A. A, B, C, D
• B. B, A, C, D
• C. B, A, C, D
• D. C, D, A, B

Hint:

Data types in C vary in size depending on the architecture. It's important to understand their size for efficient memory usage.

Answer 1

The Correct Option is D

Step 1: Understand the size of data types in C. 
In C, the sizes of data types depend on the system architecture, but typically: 

- **unsigned char** is the smallest data type, usually 1 byte. 

- **unsigned int** typically takes 4 bytes on most systems. 

- **signed long int** usually takes 4 bytes, but can take 8 bytes on some systems. 

- **long double** is the largest, often taking 8 or 10 bytes depending on the system.

Step 2: Evaluate the options. 
- **C (unsigned char)** is the smallest, so it comes first.

- **D (unsigned int)** is next in size, typically taking 4 bytes. 

- **A (signed long int)** comes next, typically taking 4 or 8 bytes. 

- **B (long double)** is the largest data type in C, typically taking 8 or 10 bytes.

Step 3: Conclusion. 
Thus, the correct order from smallest to largest is: **C, D, A, B**.