Question

improvements to the light bulb (lewis latimer, 1881 - 1882)
lewis latimer made advancements in electric lighting by developing improvements to light bulb structure and to the manufacture of carbon filaments. he received patents for these innovations in 1881 and 1882, respectively.

• latimer invented a way to make carbon filaments that was more reliable, which allowed them to be mass - produced.
• although he did not initially work for thomas edison, latimer later joined the edison electric light company and collaborated on improving the light bulb.
• latimer’s work helped improve electric lighting and made it more widely available.

how did frederick mckinley jones invention impact world war ii?

• it improved battlefield communications by providing a mobile headquarters.
• it allowed the military to deploy improved ambulances and mobile hospitals.
• it allowed transportation of perishable supplies like food, blood, and medicine.

Explanation:

Frederick McKinley Jones invented the refrigerated truck, which enabled the transportation of perishable supplies like food, blood, and medicine. This was crucial during World War II for maintaining the quality of such supplies during transit, supporting military operations and medical needs. The other options do not align with his invention's impact.

Answer:

The option: "It allowed transportation of perishable supplies like food, blood, and medicine."