Question

how was the telephone different from the telegraph?
the telephone allowed for instant communication over a distance.
the telephone allowed for voice communication over a distance.
the telephone was generally used only in offices.
the telephone was generally used only by trained operators.

Explanation:

• Analyze each option:
• First option: Both telephone and telegraph allowed instant communication over distance, so this is incorrect.
• Second option: Telegraph used coded messages (like Morse code), while telephone allowed voice communication over distance. This is a key difference.
• Third option: Telephones were used in various settings, not just offices, so this is wrong.
• Fourth option: Telephones could be used by ordinary people, while telegraph often required trained operators. So this is incorrect.

Answer:

B. The telephone allowed for voice communication over a distance.