Which phrase from the excerpt best supports the author's
view that Edison's determination helped him succeed?
Read the excerpt from "Thomas Edison: The Master of
Improvement."
It was this same stubborn resolve that made Edison's
lightbulb 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!
made Edison's lightbulb more successful than Swan's
O 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