Why in the following code example presented in the slides:

int $*$arr$[]=\{$ malloc$(12),$ malloc$(20),$ malloc$(4)\}$;

all the rows allocated with malloc use multiples of $4?($Check all that apply$)$

Group of answer choices

Because each row is to contain $4$ integers

Becaues the size of an integer is assumed to be $4$ bytes

It is a coincidence

Because the number of rows in the array is to be $4$