Considering the available options, the type of land and topography that will have the highest runoff coefficient is Slope pastureland.
Generally, the runoff coefficient describes the quantity of runoff water to the rainfall received.
Therefore, given that Slope pastureland is steep and not flat, with little grass to obstruct water, it is the type of land and topography that will have the highest runoff coefficient.
Hence, in this case, it is concluded that the correct answer is Slope Pastureland.
Learn more about the Runoff coefficient here: https://brainly.com/question/663111