An efficient summary is one capable of presenting the main points of a text in a reduced and succinct form, but consistent with the original text.
Accordingly, we can state that the second answer option is the correct answer.
We can achieve this result because:
"Those Old Piano Blues" shows how the acoustic piano was once an essential item in American life.
However, with modernization, people began to have new interests and pianos, within American homes, became something that took up a lot of space and was not used.
People have started trying to sell their pianos, but it is very difficult to find someone who wants to buy them as they are very difficult to remove and maintain.
This purchase is usually made by companies that destroy pianos to collect their pieces, which can be used in other products.
However, the interest in playing pianos continues, since many people take piano lessons.
All this information is found in the second answer option. This shows us that this option is the most efficient in presenting the main points of the text, allowing the reader to understand it well.
