GoTranscript Q&A | What should a correct sentence look like?

In this video, I answered and explained the question below: What should a correct sentence look like? Options; a) They took me to the hospital 2- 4 weeks ago. b) They took me to the hospital 2 weeks - 4 weeks ago. c) They took me to the hospital 2 weeks ago - no, 4 weeks ago. d) They took me to the hospital 2 4 weeks ago.