No, The answer will be D) No, and more information about the cost structure is needed.
Whether or not the infrastructure for high-speed Internet connections should be considered a public good depends on whether it meets the two key characteristics of a public good:
One person's use of the infrastructure does not diminish the ability of others to use it. It is difficult or impossible to exclude people from using the infrastructure, even if they don't pay for it.
So, the columnist argues that the infrastructure for high-speed Internet connections is a public good because it is non-rivalrous and non-excludable. However, there is some debate about whether this is true.