CSS3 Basic Set 5

Which of the following is a valid in-line or attribute style css code
 

If you want to set a background color  to red of your web page which of the following css declaration would you use ?

What is true about web safe colors

The difference between and Id selector and class selector is

If you want to decorate all the hyperlinks in your page to blue when mouse cursor goes over them , which one of the following would you use ? select all that applies

Which of the following are true applies for the font-family css property