5. Assume the following declarations: char name[21]; char yourName[21]; char studentName[31]; Mark the following statements as valid or invalid. If a statement is invalid, explain why. a. cin >> name; b. cout << studentName; c. yourName[ 0] = '\0'; d. yourName = studentName; e. if (yourName == name) studentName = name; f. int x = strcmp(yourName, studentName); g. strcpy(studentName, name); h. for(intj=0;j<21;j++) cout << name[j];