After the unearthing of relics at the archaeological site, the historian was asked to ___________ the significance of the discovery.

The blank needs a phrasal verb meaning to explain or clarify something clearly.

Option 1 -> throw light on -> means to clarify or explain something, making it easier to understand.

Option 2 -> shed meaning on -> not a standard phrasal verb; 'shed light on' is the correct form.

Option 3 -> turn light on -> means to switch on a light, not to explain something.

Option 4 -> focus meaning on -> not a standard phrasal verb construction and grammatically awkward.

When archaeologists make an important discovery, experts are called in to throw light on what they've found. Just like how a flashlight illuminates dark corners, this phrase means to clarify or explain something that was previously unclear or mysterious, helping others understand its true significance.