Expected an expression; menu driven function program - c

Question

I'm having problems calling the function displayArray. It says expected an expression. What am I doing wrong? I don't quite fully understand how calling a function works, any help is appreciated. I'm still working on this program and my only problem right now is calling functions.
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#define PAUSE system("pause")
#define CLS system("cls")
#define FLUSH myFlush()
#define SIZE 100
#define LB 1
#define UB 100
// ProtoType Functions Here
void myFlush();
int loadArray(int num[], int c);
void displayArray(int num[], int c);
void enterAnumber();
main() {
int userChoice = 0;
do {
CLS;
printf("=======================\n");
printf("====== MAIN MENU ======\n");
printf("=======================\n");
printf("1. Enter a number \n");
printf("2. Display the sum of all numbers entered \n");
printf("3. Display Average of numbers entered \n");
printf("4. Display all numbers entered \n\n");
printf("5. Quit the program \n\n");
printf("Enter your selection: ");
scanf("%i", &userChoice);
switch (userChoice) {
case 1: // Enter a number
enterAnumber();
PAUSE;
break;
case 2: // Display the sum of all nums ent
PAUSE;
break;
case 3: // Display the average of all nums ent
PAUSE;
break;
case 4: // Display all numbers entered
displayArray(int num[], int c);
PAUSE;
break;
case 5: // QUIT THE PROGRAM
PAUSE;
break;
default:
PAUSE;
break;
} // end switch
} while (userChoice != 4);
PAUSE;
} // end of main
//============================================
void enterAnumber() {
int numbers[SIZE];
int count = 0;
// seed the rand function
srand((unsigned)time(NULL));
// displayArray(numbers, count); // ArrayStats
count = loadArray(numbers, count);
}
void displayArray(int num[], int c) {
int i;
for (i = 0; i < c; i++) {
printf("The number selected: %i\n", num[i]);
}
PAUSE;
}
int loadArray(int num[], int c) {
int result;
int i;
int howMany;
printf("How many numbers do you wish to create: ");
scanf("%i", &howMany);
for (i = 0; i < howMany; i++)
num[i] = LB + rand() % (UB - LB + 1);
result = c + howMany;
return result;
} // end loadArray
void myFlush() {
while (getchar() != '\n');
}