Answer:D,is a correct option to go with
Step-by-step explanation:
As the question seems,and use of punctuation is to looked on.
All the options are same when viewed, but the basic difference was the use of the punctuation mark
On further viewing it seems that option B was the one which could be opted,but as per the uncertainty of the speaker he is not confirmed about the event of going to the hospital.
So,the sentence-They took me to the hospital 2-4 weeks ago is exactly the one to go with.