I want the answer without an explanation

as soon as possible

18 - question The following piece of C code aims to open a file and write a message on the screen to specify whether the file has been opened succesfully or not. FILE *fp=fopen("student.txt", "w+"); printf("Error opening file"); else printf("Opened file successfully"); fclose(fp); Choose the correct statement for missing part. a) if (feof(fp)) b) if (!feof(fp)) c) if(fp==NULL) d) None of above correct answer: a b) correct answer: correct answer: d) correct answer:d