Consider the following definition in c programming language.
struct node
{
int data;
struct node * next;
}
typedef struct node NODE;
NODE *ptr;
Which of the following c code is used to create new node?
a) ptr = (NODE*)malloc(sizeof(NODE));
b) ptr = (NODE*)malloc(NODE);
c) ptr = (NODE*)malloc(sizeof(NODE*));
d) ptr = (NODE)malloc(sizeof(NODE));

Answer: a
Explanation: As it represents the right way to create a node.