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Consider the following program code:

1.$x = 100;

2.$y = 15;

3.$result = $x % $y;

4.

5.print $result;

What is the result of executing this program code?

A.

The code will fail at line 3 because % is a unary operator.

B.

The code will output the following:

10E+16

C.

The code will output the following:

10

D.

The code will fail at line 5 because $result is not enclosed by parentheses.

Consider the following program code:

@stack = (10, 10..25);

push(@stack, yellow);

shift(@stack);

push(@stack, white);

print shift(@stack);

What is the result of executing this program code?

A.

The code will fail at line 3 because shift requires two arguments.

B.

The code will output the following:

11

C.

The code will output the following:

10

D.

The code will output the following:

white

Consider the following program code:

$x = 10;

LOOP: while ($x < 15)

{

print ($x );

if ($x >= 14 && $x <= 20)

{

$x += 2;

redo LOOP;

}

else

{

$x++;

}

What is the result of executing this program code?

A.

The code will output the following:

11 12 13 14 15 16 17 18 19

B.

The code will output the following:

10 11 12 13 14 16 18 20 22

C.

The code will output the following:

10 11 12 13 14 16 18 20

D.

The code will output the following:

10 11 12 13 14 15 16 17 18 19 20

Which one of the following choices is a unary operator that can apply to only a single variable?

A.

++

B.

**

C.

/

D.

?