You are given a science question (hard-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.
--------
Question: A student pushed a large rubber ball on a flat, frictionless surface. The ball rolled at a speed of 1 meter per second. Which statement best describes the motion of the ball when the student stopped pushing the ball?  
 (A) The ball accelerated. (B) The ball did not move. (C) The ball changed direction. (D) The ball continued to move in the same direction.

Answer: D


Question: Farmers in Wyoming were concerned because some of their chickens were being preyed upon by hawks that lived in areas around their ranches. The farmers grouped together and hunted the hawks until they were no longer in their area. Which would most likely happen next?  
 (A) The chicken population would go down. (B) Populations of mice and rats would increase. (C) Another bird of prey would replace the hawk. (D) The chickens would have a lower rate of disease.

Answer: B


Question: A student performed this experiment: Four different types of seeds were planted in identical pots filled with the same kind and amount of soil. The pots were placed in a warm, sunny place and were given the same amount of water each day for a month. Which question about these seeds could be answered at the end of the month?  
 (A) Which seeds grew well in the dark? (B) Which seeds produced the tallest plants? (C) Which seeds survived in cold temperatures? (D) Which seeds needed the least amount of water?

Answer:
B