Help me solve question b and c. Thanks

b. Based on the following array declaration and initialization, answer question i - iv. int numbers [3] [6]={{3,7,5,1), 49,4,7,6,8,2), (3, 8, 7, 21); How many elements does the array have? iv. Write a statement to store 11 in the last column of the last row in the array. (4 marks) c. Figure 2.1 shows incomplete program that will ask the user to enter 10 integer numbers into an array. Function avgArray () calculate and return the average of the numbers. Write the complete program #include using namespace std; // Write the function prototype here int main() const int SIZE - 10; int userNums (SIZE); cout > user Nums [count]; cout