You should state what language you want your answer to be in before you ask programming questions. Here is what you're looking for in Java:
<span>public static String replace(String str) {
return str.replace(' ', '*')<span>;
</span>}</span>
D is the right answer because DNS is the answer
You can try and turn wifi off then on press save on whatever you were doing if you can then reboot it. other then that theres not many more options.
IsTeenager = ( ( kidAge >= 13 ) && ( kidAge <= 19 ) ) ? true : false;
Another way:
if( ( kidAge >= 13 ) && ( kidAge <= 19 ) )
isTeenager = true;
else
isTeenager = false;