question: A student observed a rock made up of many small particles of sand arranged in light-colored layers and dark-colored layers. Which of the following statements describes how this type of rock most likely formed?
choices.text: Clay was crushed and frozen under a glacier. Lava from a volcano cooled quickly in water. River sediments were slowly compacted and cemented together. Mineral deposits hardened into solid rock in underground caves.
choices.label: A B C D