What does ariel do that causes fear in the hearts of stephano and trinculo?
a. he accuses them of treachery against prospero.
b. he whispers in their ears that caliban will hurt them.
c. he plays a musical tune yet remains invisible.
d. he appears in the form of a harpy to threaten them.

The correct answer is C) He plays a musical tune yet remains invisible.

What Ariel did that caused fear in the hearts of Stephano and Trinculo was "He plays a musical tune yet remains invisible."

We are talking about "The Tempest," a play written by renown English writer William Shakespeare.

In the story, Prospero conjures and creates a magical storm to shipwreck a vessel that transported his brother Antonio and the King of Naples. Propero has a loyal servant called Ariel. Ferdinand, the son of the king, falls in love with Miranda, the daughter of Prospero. And then the conflict of the plot develops.

i believe the answer is the last option, the magyars preferred to invade by land.

i hope this ! : )