Mistake Question

Question

Please check this screenshot and find the mistake on the question. http://prntscr.com/g2i19v

Answer 1

There's no mistake.

Q.
Fill in the blanks to print "World" to the screen.

A.
$Hello = "World";
$a = "Hello";
echo $a;

Answer 2

There's no mistake.

you need "$" to complete it.

Answer 3

$