What programming language is this?

class WorldController < ApplicationController
def hello
  render :text => 'Hello world'
end

1. C#
2. Ruby on Rails
3. Python
4. C++
5. Lisp

>>> x = int(raw_input("Please enter an integer: "))
>>> if x < 0:
...      x = 0
...      print 'Negative changed to zero'
... elif x == 0:
...      print 'Zero'
... elif x == 1:
...      print 'Single'
... else:
...      print 'More'

1. Python
2. Perl
3. C
4. Ruby

class helloworldprog
{  
        public static void main(String args[])
        {
           System.out.println("Hello World!");
        }
}

1. C++
2. Pascal
3. Java
4. Pike

<? foreach ($list as $key => $value): ?>
<?= $key ?>: <?= $value ?>
<? endforeach; ?>

1. PHP
2. Perl
3. Tk
4. ASP

#include<stdio.h>
main()
{
  printf("Hello World");
}

1. .NET
2. Java
3. COBOL
4. C

foreach my $item (@stuff) {
  if ($item =~ /foobar/i) {
    print "$item\n";
  }
}

1. ASP
2. Python
3. Perl
4. Tcl
5. Shell

10 PRINT "Hello World!"
20 GOTO 10

1. C++
2. Django
3. Robot C
4. Basic
5. LEGOs

<% Response.Write("Hello World!") %>

1. PHP
2. ASP
3. Shell
4. XML

SELECT id FROM kittens WHERE furry IS NOT NULL;

1. LOLcode
2. Basic
3. Lisp
4. SQL

1 0 1 0 0 1 1 0 1 1

1. Fortran
2. Matlab
3. Binary
4. Z++

<address>
1234 somewhere lane <br />
Foobar, TX<br />
</address>

(I know, it's not technically a programming language. Get over it.)

1. PHP
2. ASP
3. HTML
4. XML
5. JSP
6. DHTML
7. CSS

799 S = FLOATF (IA + IB + IC) / 2.0
AREA = SQRT( S * (S - FLOATF(IA)) * (S - FLOATF(IB)) * +     (S - FLOATF(IC)))
WRITE OUTPUT TAPE 6, 601, IA, IB, IC, AREA
601 FORMAT (4H A= ,I5,5H  B= ,I5,5H  C= ,I5,8H  AREA= ,F10.2, +        13H SQUARE UNITS)
STOP
END

1. COBOL
2. Visual Basic
3. Fortran
4. C#
5. Perl