Which network could not carry commercial traffic? internet arpanet the world wide web usenet groups done

ARPANET

Explanation:

ARPANET was created in 1969 to connect scientific and research users across multiple institutions for collaboration. It was not intended to carry commercial traffic. However as the network evolved it metamorphosed into a massively large global network based on TCP/IP which we now know as the Internet or world wide web(WWW). The internet now carries all kinds of traffic including commercial traffic.

i think the answer would be a

answer; i think/believe the correct answer is balance sheet;