Get User Input and Compare

#include <stdio.h>
#include <string.h>

#define clear() printf("\e[1;1H\e[2J");

void How(char *name1);

int main(void){
    char name[20];

    clear();
    printf("Hello.\n");
    sleep(1);
    clear();

    printf("Please Enter Your Name: ");
    fgets(name,sizeof(name),stdin);

    clear();
    int nn = strlen(name); //get length of name
    name[nn - 1] = '\0'; //remove newline at end of name

    How(name);
}

void How(char *name1){
        char ch;

        clear();
        printf("Hello %s, how are you?\n", name1);
        printf("\t1)Good\n\t2)Bad\n>");
        scanf(" %c", &ch );

        if(ch == '1'){
                printf("That is good to hear %s\n",name1);
                sleep(2);
        }
        else if(ch == '2'){
                printf("Sorry to hear that %s\n",name1);
                sleep(2);
        }
        else{
                printf("Sorry, that is not an option.\n");
                sleep(2);
        }
}