In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
--------
Question: if a river ran through a region, what would be found close by? (A) land mass susceptible to water encroachment (B) active life coral reef (C) acid rain susceptible area (D) very active volcanic mountains

Answer: A


Question: Buttercups can produce (A) their own nutrients (B) grow in space (C) ride horses (D) enter singing competitions

Answer: A


Question: A river rushes and pebbles are smacked around one another until (A) they are wet (B) they are clear (C) they are rough (D) they are velvety

Answer:
D