While researching a topic, a student has taken the following notes:

* In 1897, African American inventor Andrew Beard invented an automatic coupler.
* It improved on the existing design of train car couplers.
* It made the job of connecting train cars safer.
* In 1938, African American inventor Frederick Jones invented a mobile refrigeration system.
* It improved on the existing design of food transport trucks.
* It enabled trucks to carry perishable foods farther.

The student wants to emphasize a similarity between Beard's invention and Jones's invention. Which choice most effectively uses relevant information from the notes to accomplish this goal?

Question

Accepted Answer

Beard's automatic coupler and Jones's mobile refrigeration system both improved on existing designs.

Answer

In 1897, Beard invented an automatic coupler, which made the job of connecting train cars safer.

Answer

Beard's invention made the job of connecting train cars safer, whereas Jones's invention enabled food transport trucks to carry perishables farther.

Answer

Jones's mobile refrigeration system, which he invented in 1938, made it possible for food transport trucks to carry perishable foods farther.