which access modifier in PHP 5 is equivalent to "var"?

You want to run the following PHP 4 code with PHP 5. In the following example, which access
modifier in PHP 5 is equivalent to “var”?
<code>
class Test {
var $tester;
}
</code>

A.
protected

B.
invisible

C.
public

D.
private

E.
outofscope