Fix the error and re-write the code: #include ; int main()  { float radius, area,    float circumference;  printf("To calculate the radius & circumference of a circle: ");  scanf("Enter the radius of the circle: %f", &radius);   area == 3.14 * radius * radius;   circumference = 2 * 3.14 * radius;   printf("\nThe area of the circle is %lf", area);   printf("\nThe circumference of the circle is %lf", circumference);   return 0;  }

Why is it uncommon for users to perform searches directly in database tables? a.)users are discouraged from interacting directly with tables because they might confuse tables with spreadsheets. b.) users are discouraged from interacting directly with tables because this may result in unintended changes to source data. c.)users do not have the technical skills required to perform searches directly in database tables. d.)users do not have the permissions required to perform searches directly in database tables.