✡ Answer: D. Typewriters, previously used by many people, are considered antiques nowadays.
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- - Why? Look at other answers:
A. Oscar reading slowly finished well after the rest of us. -Needs a comma after Oscar and slowly.
B. People, working with tools,
should wear goggles. - No need of commas.
C. That cow raised by my uncle, won second prize at the fair. - Needs comma after cow.
✡Hope this helps!✡