The following sentence is a comma splice: The airliner skidded off the runway, over 100 passengers were injured. In which sentence is one of the independent clauses correctly turned into a dependent clause to fix this comma splice?
a) The airliner skidded off the runway; over 100 passengers were injured.
b) The airliner skidded off the runway unfortunately, over 100 passengers were injured.
c) When the airliner skidded off the runway, over 100 passengers were injured.