Which of these PHP code snippets are valid?

Question

Which answers are valid?

Accepted Answer

```php
<?php

$a = new \Some
amespace\ClassA;
$b = new \Some
amespace\ClassB;
```

Accepted Answer

```php
<?php

use Some
amespace\ClassA;
use Some
amespace\ClassB;

$a= new ClassA;
$b= new ClassB;
```

Accepted Answer

```php
<?php

use Some
amespace\{ClassA, ClassB};

$a= new ClassA;
$b= new ClassB;
```

Question from the PHP7 test