Question

In which sentence is the dash used correctly?


They were trapped—on an island far from the mainland.


Alisa dove behind a dune—and Suzanne covered her head with a jacket.


The day had been warm—however, the rain that lashed their faces was cold.


A giant waterspout erupted from the ocean—Min just stood there and took photos.

Answer 1

A giant waterspout erupted from ocean

Answer 2

None of the above sentences are correctly using the dash.

The sentences need correct punctuation rather than the dash in them.

If however one is forced to choose a sentence for gradation of dash usage, then the fourth option has some bearing of using the dash else it even does not require a hyphen in the sentence.