According to the author, why is it problematic to use datasets created in different datums? Group of answer choices

Positions of features can be offset (or misregistered). For example, a fire hydrant could be shown inside a building.

Because WGS84 only covers the lower 48 states and cannot be used for other locations, such as anywhere in Europe.

Features can be misplaced as much as 100 kilometers when using different datums.