Click on the correct response for each question below.

1		If a variable x can have only one value, we can declare it in Perl as ____________.
			A)	singular $x;
			B)	my ($x);
			C)	My ($x);
			D)	myvar $x;
			E)	def $x;
2		We may specify the __________ statement at the top of the script to prevent Perl creating undeclared variables automatically.
			A)	Option Explicit
			B)	#!usr strict;
			C)	#!usr enforce;
			D)	&force_declaration;
			E)	use strict;
3		If a variable x can have only one value, we can declare it in Perl as ____________.
			A)	singular $x;
			B)	my ($x);
			C)	My ($x);
			D)	myvar $x;
			E)	def $x;
4		Which of the following operator should be used when we compare if a Perl scalar variable with string value is less than another Perl scalar with string value?
			A)	LT
			B)	LE
			C)	<
			D)	lessthan
			E)	le
5		Which of the following is the "Or" logical operator in Perl?
			A)	Or
			B)	!
			C)	&
			D)	&&
			E)	||