Ireland’s ancient Newgrange originally functioned as what?

Here is the question :

IRELAND’S ANCIENT NEWGRANGE ORIGINALLY FUNCTIONED AS WHAT?

Here is the option for the question :

• Temple
• Farm
• Art gallery
• Tomb

The Answer:

And, the answer for the the question is :

Explanation:

[STC0018210]. A sophisticated paleolithic passage tomb built approximately 320 BCE is called Newgrange. Later, when the Celts came to Ireland, it was abandoned. The site’s ongoing investigation and excavation are revealing more information about its sophisticated Stone Age engineering. The tomb was found to be situated so that the main room was illuminated by the rising sun on the winter solstice. Additionally, the standing stones in the surrounding terrain seem to serve clear astronomical and calendar functions.