Answer:
The detail answer of this question is given in explanation section.
The simple answer is option B
Explanation:
Let took at each option:
A) an html tag
An html tag is used to start and end html document. It does not have anything to do with rendering.
B) a doctype declaration
The document type declaration is necessary because it tell the browser which version of html should be rendered.
C)Body tag tell the browser. it is the visible area of website.
D) A hear tag is used to clear meta data about website.
Answer:
C++.
Explanation:
#include <iostream>
#include <string>
using namespace std;
////////////////////////////////////////////////////////////
class Television {
string brand;
float screen_size;
bool powerOn;
int volume;
int channel;
public:
// Comments
Television(string brand, int screen_size) {
this->brand = brand;
this->screen_size = screen_size;
powerOn = false;
volume = 20;
channel = 2;
}
//////////////////////////////////////////
// Comments
int getVolume() {
return volume;
}
// Comments
int getChannel() {
return channel;
}
// Comments
string getManufacturer() {
return brand;
}
// Comments
float getScreenSize() {
screen_size;
}
///////////////////////////////////////////
// Comments
void setChannel(int channel) {
this->channel = channel;
}
// Comments
void power() {
if (!powerOn)
powerOn = !powerOn;
}
// Comments
void increaseVolume() {
volume = volume + 1;
}
// Comments
void decreseVolume() {
volume = volume - 1;
}
};
