Answer:
In the early 1900s, Elizabeth White and Dr. Frederick Coville began to farm wild highbush blueberries. Later, plant breeders developed the new kinds of larger, hardy berries that you see in grocery stores. You can still find wild blueberries, often in hilly or mountainous areas.
Step-by-step explanation:
The passage tells us that Elizabeth White and Dr. Fredrick Cole began growing wild highbush blueberries in the 1900s. As time went by, blueberries could be found as hardy berries, and this change was effected by plant breeders. Today, the blueberries can be found in hilly areas and at self-pick farms. This excerpt shows a progressive change from what was obtainable in the 1900s to what is applicable today.
The American Indians were also familiar with places where these blueberries could be gotten, but the actual growth started in the 1900s with the two farmers. From that time on, several changes in the way the blueberries were grown are shown.