Read the three sentences below. Then, combine the sentences into a compound-complex sentence. Swimmers should be careful. Shark attacks are rare. Shark attacks can be prevented.
O Because shark attacks are rare and preventable, swimmers should be careful.
O Swimmers should be careful, and shark attacks are rare, and attacks can be prevented.
O Shark attacks are rare, and attacks can be prevented if swimmers are careful.
O Shark attacks can be prevented when swimmers are careful.