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

Interaction between two persons at some distance was possible

Rich people were able to communicate with others

Graham Bell wanted to use the same technology for the deaf and the dumb to communicate

It revolutionized human life

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

ব্যাখ্যা ও সঠিক সমাধান

উত্তর: It revolutionized human life

বিস্তারিত সমাধান