Read the excerpt from "thomas edison: the master of improvement.”
it was this same stubborn resolve that made edison’s light bulb more successful than swan’s. edison thought that the secret to a better bulb could be found in the filament. he simply needed to figure out what type of material worked best. edison tried metal first. then he tried different kinds of wood, coconut fiber, and even the hair from a friend’s beard!
which phrase from the excerpt best supports the author’s view that edison’s determination him succeed?
made edison’s light bulb more successful than swan’s
edison thought that the secret to a better bulb could be found
needed to figure out what type of material worked best
he tried different kinds of wood, coconut fiber, and even the hair

A) Made Edison's light bulb more successful than Swan's

Explanation:

Let's go through process of elimination:

- made Edison’s light bulb more successful than Swan’s

This shows a very straightforward goal.

- Edison thought that the secret to a better bulb could be found

While it is impressive that he thought he cracked the code, this does not show how determined he is to succeed.

-needed to figure out what type of material worked best

This shows that he knows what he's doing, not necessarily him being determined.

-he tried different kinds of wood, coconut fiber, and even the hair

His experimentation could also represent how determined he is to crack the code, however, it is more so experimentation than it is determination.

the answer is:  

he is voicing feelings shared by all humans regardless of race.

in paul laurence dunbar's poem "we wear the mask," he replicates the words mask and we to emphasize how people in general -not just black americans- hide their true feelings. he suggests the masks cover people's faces and eyes, which are the main parts that display their emotions. he also thinks people's pain conceal behind those masks, so that they cannot see reality and nobody is able to see one another's sorrow.

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