As a<span> </span>primary key<span> is a field in a table which uniquely identifies each row/record in a database table, then the advisable field for the primary key in here should be the Course_ID. That is very unique in that table</span>
        
                    
             
        
        
        
Answer:
The program in C++ is as follows:
#include <iostream>
#include <vector>
using namespace std;
int main(){
 vector<int> nums;
 int num;
 cin>>num;
 while(num != -1){
  nums.push_back(num);
  cin>>num;	}  
 for (auto i = nums.begin(); i != nums.end(); ++i){
     cout << *i <<endl;	}
 return 0;
}
Explanation:
This declares the vector
 vector<int> nums;
This declares an integer variable for each input
 int num;
This gets the first input
 cin>>num;
This loop is repeated until user enters -1
 while(num != -1){
Saves user input into the vector
  nums.push_back(num);
Get another input from the user
  cin>>num;	}
The following iteration print the vector elements
<em> for (auto i = nums.begin(); i != nums.end(); ++i){
</em>
<em>     cout << *i <<endl;	}
</em>
 
        
             
        
        
        
The answer is D. It's asking for the most UNETHICAL not ETHICAL, the answer before me was ETHICAL. Sharing personal data is UNETHICAL.
 
        
                    
             
        
        
        
Answer:
click create new presentation -_- i use power poin all the time
Explanation:
im not dum