Which of the following statements will change the data type of $odometer to an integer?
Given: $odometer = "45,852";
a.
```
$odometer = parseInt($odometer);
```
b.
```
$odometer as integer ?>
```
c.
```
php gettype($odometer, "integer);?>
```
d.
```
php settype($odometer, "integer);?>
```
d.
```
php settype($odometer, "integer);?>
```
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A) Cliffs B) Serifs C) Tails D) Strokes
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Fill in the blank(s) with the appropriate word(s).