Identify the true statement. Choose one: A. Dating a sand grain in a sandstone gives the age of the sandstone's formation. B. Radiometric dating can be used only if some uranium is present in a rock. C. All of the possible answers are correct. D. Dating a mineral within a metamorphic rock gives the age when the rock cooled below the closure temperatures of that mineral.

What types of jobs typically are found in ghetto, inner-city neighborhoods? a. low-wage positions, typically in retail outlets, that require little education b. professional positions with banks, doctors' offices, and other similar businesses c. hourly factory and manufacturing positions d. positions that require advanced education, such as those in financial or technology firms select the best answer from the choices provided.