Considering the available options, the true state about the Unicellular and Multicellular organisms is that they both reproduce.
While Unicellular organisms are made from a single cell to function, the multicellular organisms on the other hand is made from multiple cells to functions.
However, based on credible researches both unicellular and multicellular organisms can reproduce regardless of their cell makeup.
The answer is to prevent a British invasion from the north because it would have been very easy for Britan to destroy them because they were weak in the north.
