Answer : Option A

Explanation :

1. itoa() converts an integer to a string.
2. ltoa() converts a long to a string.
3. ultoa() converts an unsigned long to a string.
4. sprintf() sends formatted output to a string, so it can be used to convert any type of values to string type.

 #include 
 #include

  int main(void) 
  {  
     int   num1 = 12345;  
     float num2 = 5.12;    
     char str1[20];   
     char str2[20];     

    itoa(num1, str1, 10); /* 10 radix value */    
    printf("integer = %d string = %s \n", num1, str1);    
   
    sprintf(str2, "%f", num2);    
    printf("float = %f string = %s", num2, str2);   
  
    return 0;
 }
  
   // Output:
  // integer = 12345 string = 12345 
 // float = 5.120000 string = 5.120000