What is the function of the dash in the sentence below?

Question

Then Garth–he's the tall one–caught the pass and scored a touch-down.

to interrupt
to introduce a list
to follow an introductory element
to link sentence parts

Answer 1

In the sentence "Then Garth–he's the tall one–caught the pass and scored a touch-down," the function of the dash is to interrupt. The dash is used to insert additional information about Garth, providing clarification without disrupting the flow of the main sentence.