The following paragraphs are from an essay about the invention of a popular toy.
[1]
In 1943, marine engineer Richard James was working in a Philadelphia shipyard, attempting to develop a system of springs that could stabilize sensitive instruments on shipboard during rough seas.
[2]
After realizing the spring's potential, James spent the next two years refining the steel wire tension to optimize its walking motion. His wife, Betty, then coined the name "Slinky" after finding a dictionary definition that described the spring’s sleek, graceful movement.
[3]
The breakthrough occurred quite by accident when James knocked one of his prototype tension springs off a high shelf. Instead of falling flat, the spring "walked" down a stack of books, onto a table, and coiled itself upright on the floor.
[4]
Despite their excitement, initial sales were sluggish when the toy first hit the market. However, after a successful demonstration at a Philadelphia department store in November 1945, all 400 of their original stock sold out in ninety minutes, cementing the Slinky’s place in toy history.
For the sake of the logic and cohesion of this essay, Paragraph 3 should be placed:
- Awhere it is now
- Bbefore Paragraph 1
- after Paragraph 1Answer
- Dafter Paragraph 4