when items in a list already contain commas, the writer should separate the items in the list…
when items in a list already contain commas, the writer should separate the items in the list using\ncommas.\nhyphens.\nperiods.\nsemicolons.
Answer
Brief Explanations:
When list - items have commas, semicolons are used to separate the items to avoid confusion. Commas within items would conflict with list - item separating commas. Hyphens and periods are not used for this purpose.
Answer:
semicolons.