Question

nasa and international research teams conclude that a moon colony is viable with global support.
20
logos
ethos
pathos

Explanation:

Ethos appeals to credibility/ethics, using trusted sources (NASA, international research teams) to support the claim. Logos is logic/reason, Pathos is emotion; here, the authority of these groups is used, so it's Ethos.

Answer:

Ethos (the blue button with "Ethos")