Q Which of the following was the signature attack of large sauropod dinosaurs with their long necks and tails?

Among sauropods, Diplodocus in particular had an exceptionally long and slender tail, and research shows that it had well-developed muscles to move it.
To protect itself from carnivorous dinosaurs, it is believed to have swung its tail forcefully like a whip to create a loud cracking sound for intimidation, or to physically strike and drive away enemies.