What’s the Definition of appeal to authority?

Does anyone know the answer to the question?

We must understand the connections between the climate crisis and the afflictions of poverty, hunger, hiv-aids, and other pandemics. as these problems are linked, so too must be their solutions. we must begin by making the common rescue of the global environment the central organizing principle of the world community. which statement best describes gore's use of evidence to support his argument? a. gore makes connections between events to support his argument that solutions to the climate crisis will also solve other problems. b. gore provides dramatic details to support his argument that solutions to problems of this magnitude are often rare. c. gore compares crises in the world to support his argument that the problem of climate change must take a backseat to other problems. d. gore describes positive outcomes to support his argument that people should remain optimistic about finding solutions to climate change.

Pls excerpted from "hope is the thing with feathers" by emily dickinson [2] and sweetest—in the gale—is heard— and sore must be the storm— that could abash the little bird that kept so many warm— [3] i've heard it in the chillest land— and on the strangest sea— yet, never, in extremity, it asked a crumb—of me. in the last stanza, the author writes that the little bird “never … asked a crumb of me.” which type of figurative language is evident in these lines? a. onomatopoeia b. alliteration c. assonance d. personification