Question

Define this statement as standard, slang, jargon, dialect, or ungrammatical.

For a week following the accident, we talked of nothing else

Answer 1

I can eliminate slang (they’re not using informal language) and dialect (they’re not using language specific to a certain region)

Between jargon and ungrammatical which do you think is a better fit?

Answer 2

Isn't there supposed to be a period at the end? If not then its ungrammatical.

Answer 3

if there is a period included in the original then it's standard