i think its the first sentence: Mobile devices have become the main source of communication for many people around the world
if im wrong im dum ;-;
Answer:
The option(B) is the correct answer .
Explanation:
In C++ the // (two slash marks ) indicating the beginning of a comment .The two slash marks ( // ) comment the single line in a program.To use two slash marks ( // ) comment we simply write // in which line we have to make comment.
following are the example of code in c++
#include<iostream.h> // header file
void main() // main method
{
cout<< " india"; // print india
}
here // indicating the beginning of a comment .
One million is the answer.