What is the output of the following code?
$first = "second";
$second = "first";
echo $$$first;
A. "first"
B. "second"
C. an empty string
D. an error
What is the output of the following code?
$first = "second";
$second = "first";
echo $$$first;
A. "first"
B. "second"
C. an empty string
D. an error