Question

Which sentence below shows correct use of em dashes?

She will one day inherit this kingdom—the one on the map—to rule as her own.

She will one-day inherit this kingdom the one on the map – to rule as her own.

She will one day inherit – this kingdom – the one on the map to rule as her own.

She will one day inherit this – kingdom – the one on the map to rule as her own.

Answer 1

A is using em dashes correctly. They serve like commas to set off an appositive, but they emphasize it more than commas do.