What kind of memory allocation occurs on the blue line of code below?

int my_fun() {

char *s = (char *) malloc(10);

}

a. stack allocation

b. heap allocation

c. both stack and heap allocation

d. neither stack nor heap allocation

Which is the correct way to allocate memory to make a copy of a string foo? (This code shows only the memory allocation, not the copying.)

a. char *s_copy = (char *) malloc(foo);

b. char *s_copy = (char *) malloc(strlen(foo));

c. char *s_copy = (char *) malloc(strlen(foo) + 1);

The line of code below can be fixed by changing one thing? What is it?

int *xp = (int *)malloc(1);

a. The argument passed to malloc()

b. The (int *) in front of malloc

c. The int * at the beginning of the line