What does this sentence demonstrate?
both new york city and chicago are fascinating places to visit.
a pair of conjunctives
a combination of clauses
a correlative pair
an appositive
lonely

answer: the tobacco industry has traditionally been one of the most important industries in north carolina and a backbone of the state's agricultural heritage. yet as the north carolina economy continues to transition from an agricultural economy to a manufacturing and, increasingly, service-based economy, the industry faces new challenges, both at home and abroad

explanation: