i am owned by twitter. i enable users to record and share short looping video clips with a maximum length of six seconds. i was released in 2013, but discontinued in 2016. posts were comedic, musical, serious and sometimes weird. i helped shawn mendes, nash grier and lele pons among others become famous. what am i?

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hello,

your answer is a) the metaphor suggests that the poetic themes are serious and dark.

collins is comparing the poem to a dark room. he is suggesting that the poems theme is serious and wants you to understand it. you don't need to understand the poet in order to understand the poem. you also don't need to move around while reading it. he is simply saying the poem has a dark and serious theme.

- i.a -

a term is used to describe a sudden revelation in a short story is "showing forth".

the emperor is made to look inferior next to faustus's power.