What can be concluded about the long-term effects of Alexander Graham Bell’s invention? It increased literacy rates by encouraging people to communicate through the written word. It encouraged the development of new cities and trades by allowing people to travel farther and faster. It improved the economy by increasing the number of hours people could work each day. It enabled families to remain in close contact even as they moved across the country and across the world.

The long-term effects of Alexander Graham Bell’s invention enabled families to remain in close contact even as they moved across the country and across the world.

Therefore we can conclude that the option D. is the correct answer.

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It enabled families to remain in close contact even as they moved across the country and across the world.

Explanation:

Alexander Graham Bell is a well known scientist and engineer, who is widely known for the invention of Telephone.

Telephone is practically used for making calls, whereby a user at one end, can get to listen and hear the other user, at the other end, regardless of the distance and location, in as much the telephone service network is available.

Hennce, it can be concluded that the long-term effects of Alexander Graham Bell’s invention, which is basically Telephone, is: "it enabled families to remain in close contact even as they moved across the country and across the world."

answer: nope

explanation: because theirs barely anyone on here to you. but let me see the question. maybe i can , if i know the answer!