Beginning in the 1960s, the Advanced Research Projects Agency Network (ARPANET), funded by the US Department of Defense, utilized packet switching and transmission control protocol technologies to transfer information between various computers located across the country from each other. What revolutionary technology was developed based on ARPANET and related networks?

a- the internet
b- the radio
c- television
d- GPS

a- the internet

The revolutionary technology that was developed based on ARPANET and related networks is the internet. Therefore, the correct answer is option a - the internet.

The revolutionary technology developed based on ARPANET and related networks is the internet.

To get the answer to this question, you can break it down into two parts. First, you need to understand what ARPANET is and its purpose. ARPANET was a network funded by the US Department of Defense in the 1960s. It utilized packet switching and transmission control protocol technologies to transfer information between various computers located across the country from each other.

Next, you need to identify which technology was developed based on ARPANET and related networks. By understanding ARPANET's function and significance, you can deduce that the technology developed is the internet.

So, in answer to the question, the correct option is: a- the internet.