Question

in the 1880s, inventor lewis latimer improved upon thomas edisons design for the electric light bulb. ____ latimer made the light bulb more durable by placing cardboard around its carbon filament. with this innovation, latimer became the first black inventor to contribute to the electrification of the world. 23 which choice completes the text with the most logical transition? a soon. b regardless. c however. d specifically.

Explanation:

The second - sentence describes how Latimer made the light - bulb more durable, which is a specific way of improving Edison's design. "Specifically" is used to introduce a more detailed or particular example or explanation. "Soon" implies time, "Regardless" implies in spite of something, and "However" implies contrast, none of which fit the context as well as "Specifically".

Answer:

D. Specifically