instruction:
You are given a science question (easy-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:
Which is the best evidence for the theory of continental drift?  
 (A) the appearance of volcanoes at the boundaries where plates collide (B) earthquakes at boundaries where one plate slides past another (C) cases where a species exists in only one isolated place (D) fossils of the same species found on widely separated continents
answer:
D


question:
The parts of plants that make seeds are the  
 (A) roots. (B) stems. (C) flowers. (D) leaves.
answer:
C


question:
Gravity can be defined as a force of attraction between objects. The effects of gravity can be witnessed in many systems. Which of these actions is an example of gravity influencing other systems?  
 (A) surface water evaporating into the atmosphere (B) planets moving around the Sun in an elliptical pattern (C) glaciers melting because of increasing temperatures (D) groundwater moving to the surface in an artesian well
answer:

B