Which excerpt from “the telephone: a truer tale” best supports the purpose of the text?

a. after all, it has a terrific happy ending in which the hero, alexander graham bell, uses his astonishing new device to transmit the words “mr. watson, come here. i want to see you.”
b. meucci would not allow himself to become discouraged, however. instead, he returned to his lab determined to make his talking machine even better. he worked for many more years and did just that.
c. in 1871, meucci still lacked investors and was unable to pay the $250 patent fee, so he filed a patent caveat instead. a patent caveat cost only $10 and would not allow anyone else to patent the same idea for one full year.
d. on june 11, 2002, one hundred and twenty-six years after bell’s patent was issued, the united states house of representatives passed a resolution recognizing antonio meucci as the true inventor of the telephone.