Final answer:
The "code name" of the Dutch underground during World War II was often referred to as "Het Parool" or "De Smith." The correct option is 1) Smith
Step-by-step explanation:
The Dutch underground during World War II used various code names to communicate and organize resistance activities.
One prominent code name was "Het Parool," which translates to "The Password" or "The Watchword." Additionally, the term "De Smith" was used as a code name.
These code names helped members of the Dutch resistance identify each other and maintain secrecy in their operations against the German occupation.
The use of code names was crucial for protecting the identity of resistance members and ensuring effective communication within the underground network. While "Het Parool" is more widely known, "De Smith" is another example of a code name associated with the Dutch underground during this period.