Malware can be hugely damaging to businesses as well as individuals. Hackers often use malware to try and gain entry into an organisation's systems or networks, from where they can access valuable data to steal and sell on.
Pie chart I believe that is the right answer
You didn't include the original function, but the new function will contain something like:
function kelvin_to_celsius(k)
{
return k - 273.15;
}
Depending of course on your programming language.
The outcome for negative Kelvin is undefined, you could test for that.