C Programming - Complicated Declarations

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Declare the following statement?
"A pointer to a function which receives an int pointer and returns float pointer".

float *(ptr)*int;

float *(*ptr)(int)

float *(*ptr)(int*)

float (*ptr)(int)

What do the following declaration signify?

void *cmp();

cmp is a pointer to an void type.

cmp is a void type pointer variable.

cmp is a function that return a void pointer.

cmp function returns nothing.

Declare the following statement?
"A pointer to a function which receives nothing and returns nothing".

void *(ptr)*int;

void *(*ptr)()

void *(*ptr)(*)

void (*ptr)()

What do the following declaration signify?

int *f();

f is a pointer variable of function type.

f is a function returning pointer to an int.

f is a function pointer.

f is a simple declaration of pointer variable.

10.

What do the following declaration signify?

void (*cmp)();

cmp is a pointer to an void function type.

cmp is a void type pointer function.

cmp is a function that return a void pointer.

cmp is a pointer to a function which returns void .