The correct answer is A. A structure may have members of more than one type.
A structure is a data type that can store multiple data items of different types. An array is a data type that can store multiple data items of the same type.
For example, a structure could store a person's name, age, and address. An array could store a list of numbers.
Here is an example of a structure in C:
struct person {
char *name;
int age;
char *address;
};
Here is an example of an array in C:
int numbers[] = {1, 2, 3, 4, 5};
As you can see, the structure can store data of different types, while the array can only store data of the same type.
Option B is incorrect because a structure does not have to have members that are all the same type.
Option C is incorrect because an array cannot have members of more than one type.
Option D is incorrect because there is a difference between a structure and an array.