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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

What according to the passage was the contribution of invention of telephone?

A. Interaction between two persons at some distance was possible
B. Rich people were able to communicate with others
C. Graham Bell wanted to use the same technology for the deaf and the dumb to communicate
D. It revolutionized human life
সঠিক উত্তরঃ D. It revolutionized human life
Explanation: