Answer:
D- The shoes normally cost 40 dollars; however, we got them on sale
Step-by-step explanation:
A has no punctuation at all
B the semi-colon after however is incorrect.
C the comma after 40 dollars has to be a semi-colon
D The shoes normally cost 40 dollars; however, we got them on sale
Those two clauses are separated grammatically (2 verbs with two different subjects) but are related in meaning
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