The correct answer is b. The ancient Greeks believed the gods to be vindictive and cruel, fearing them.
Indeed, Greek gods and goddesses were not seen as superior beings in terms of morality but in terms of power. They were to be feared because they were powerful and they behaved just like many humans, incapable of controlling their tempers and instincts an always indulging in whims that had nefarious consequences on mortal humans.
Greek gods were at the image of the humans who invented them; they could be good, peaceful and loving or wrathful, mean and bellicose depending on the circumstances and their emotional state.