Trying to print a struct element but getting blank. - C

I have a struct person that has the following elements, defined in data.h

typedef struct person{
    char firstName[20];
    char familyName[20];
    char telephoneNum[20];
    int type; // 0 = student / 1 = employee;
}newPerson;

I created an array of person[MAX_PERSONS] that is initialized in my menu() function. I then have an addFirstName(newPerson pers) function. However when I try to test print format using my printFormat(newPerson pers)function, I get blank, instead of the inputted name.

I have included the menu(), addFirstname(newPerson pers), and printFormat(newPerson pers) function below. I was wondering if anyone could tell me the reason for this. Any help or pointers would be appreciated. Thank you in advance.

int menu(){
    int num = 0;
    newPerson person[MAX_PERSONS]; 
    int option; // for user input for menu
    printf("\n\tPlease choose one of the following options to continue (0-9): ");   
    scanf("%d", &option );
    printf("\n\tYou selected %d\n", option);

    if (option == 0){ //program will close
        printf("\tProgram will now close.\n");
        exit(1);
    }   

    if (option == 1){ //program will ask for name input 
        addRecord(person[num]);
        printFormat(person[num]);
        char choice[0];
        printf("\n\t\tWould you like to enter another record? (y/n): ");
        scanf("%s", choice);    
        if (choice[0] == 'y'){
            num++;
            addRecord(person[num]);

        }
        if (choice[0] == 'n'){
            num++;
            mainMenu();
        }               
            /*

            IF YES, THEN NUM++
            THEN RUN ADDRECORD(PERSONNUM) AGAIN.    

            IF NO, THEN RETURN TO MAIN MENU.
            PRINTMENU
            THEN RUN MENU AGAIN
        */  
    }

    printf("\n\tNot a valid option, please try again // THE END OF MENU FUNCTION\n");
    return 0;
}

void addFirstName(newPerson pers){
    char firstName[20];
    printf("\n\tEnter first Name: ");
    scanf("%20s", firstName);
    strcpy(pers.firstName, firstName);
    printf("\n\tThe name entered is %s", pers.firstName);
}


void printFormat(newPerson pers){
    printf("\t\tThe name is %s", pers.firstName);
}