Which of the following shows the correct importation of the NGModule decorator?
1. <section>
<mw-media-item *ngFor="let mediaItem of mediaItems"
[mediaItem]="mediaItems[0]"
(delete)="onMediaItemDelete($event)"></mw-media-item>
</section>
2. <section>
<mw-media-item @ngFor='let mediaItem of mediaItems'
(mediaItem)="mediaItems[0]"
(delete)="onMediaItemDelete[$event]"></mw-media-item>
</section>
3. <section>
<mw-media-item @ngFor="let mediaItem of mediaItems"
[mediaItem]="mediaItems[0]"
(delete)="onMediaItemDelete($event)"></mw-media-item>
</section>
4. <section>
<mw-media-item $ngFor='let mediaItem of mediaItems'
[mediaItem]="mediaItems[0]"
[delete]='onMediaItemDelete[$event]"></mw-media-item>
</section>