It's D! Parent material is where the soil horizons form from. Soil develops here because it's made up of all sorts of rocks. Just think of the parent material as the "parent" and the soil is the child of some sorts.
Answer:
King sought equality and human rights for African Americans, the economically disadvantaged and all victims of injustice through peaceful protest.
A Scientists have proven that smell is an important sense
You mean the actress Emma Watson? She starred in La La Land. Hope it helps ;)