Which two sentences best develop the gloomy mode?

the president was the speaker and it was a great part of history.

explanation:

video of the national aeronautic space administration's (nasa) coverage of president john f. kennedy’s address at rice university, houston, texas, concerning the nation's efforts in space exploration. in his speech the president discusses the necessity for the united states to become an international leader in space exploration and famously states, "we choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard."

your answer is b. "with strong wording encouraging readers to take action."

the answer to the given question above would the one that wiesel is establishing and how is ethos by appeal to his authority in having survived the holocaust. hope this answers your question.

have a great day ahead!