Diane Chambers had drinks and dinner at the Cute Clam on Cape Cod while she was on vacation. She had an awful experience. Her food was cold and tasteless. The clams were rubbery and had no seasoning. The servers were rude and condescending. On returning to her hotel room, Diane wrote a scathing review on Trip Advisor. She wrote, "This was the single worse eating experience of my life. The food was terrible and the service was awful. I would not recommend that anyone eat here." After her review was posted, the restaurant saw a 40% drop in business. Sam Malone, the owner of the Clam, sued Diane for defamation. Diane:

1. Is liable for defamation because the reputation of the restaurant was ruined by the negative review.
2. Is liable for defamation because Diane should have complained to the restaurant's management before posting the negative review.
3. Is not liable for defamation because the posting was true.
4. Is not liable for defamation because the review was her opinion.
5. A and B are correct.