On the night of 21 October 1931, millions of Americans took part in a coast-to-coast

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the following numbered blanks.
THOMAS EDISON
${\,\,\,\,\,\,\,}$On the night of 21 October 1931, millions of Americans took part in a coast-to-coast ceremony to commemorate the passing of a great man. Lights (i) _________ in homes and offices from New York to California. The ceremony marked the death of arguably the most important inventor of all time: Thomas Edison.

${\,\,\,\,\,\,\,}$ Few inventors have (ii) ________ such an impact on everyday life, and many of his inventions played a crucial role in the development of modern technology. One should never (iii) ________ how revolutionary some of Edison’s inventions were.

${\,\,\,\,\,\,\,}$In many ways, Edison is the perfect example of an inventor - that is, not just someone who dreams up clever gadgets, but someone whose products transform the lives of millions. He possessed the key characteristics that an inventor needs to (iv) _________ a success of inventions, notably sheer determination. Edison famously tried thousands of materials while working on a new type of battery, reacting to failure by cheerfully announcing to his colleagues: ‘Well, (v) ________ we know 8,000 things that don’t work.’ Knowing when to take no notice of experts is also important. Edison’s proposal for electric lighting circuitry was received with total disbelief by eminent scientists, until he lit up whole streets with his lights.