In a medical test, where the null hypothesis is 'the patient does not have the disease' and the alternative hypothesis is 'the patient has the disease'. Suppose a patient has a disease and needs treatment. In the hypothesis testing process, which of the following error is more serious than the others.

#include <stdlib.h>#include <stdio.h>int main(void){ int* p = NULL; struct S *s = NULL; void(*f)(int, double) = NULL; char *ptr = malloc(15); if (ptr == NULL) printf("Out of memory"); free(ptr);}