In this subtask, you will answer a simple science question. Please indicate the correct answer. If you're not sure about the answer, choose the last option "I don't know". Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D', 'E'. The "A"-"D" responses correspond to the answer options mentioned in the input. There is a 5th option "E" which should be used for questions for which you're not sure about the answer (e.g., when the questions do not provide enough information to answer).
--------
Question: Question: Freezing of any substance occurs ___.  (A) when the particles of the substance are able to slide past one another (B) at 0Â°C (C) when a liquid changes to a solid, regardless of temperature (D) when energy is added to a substanc?

Answer: C.


Question: Question: Some objects are attracted by magnets. Which object is attracted by a magnet?  (A) an iron nail (B) an ice cube (C) a plastic knife (D) a wooden rule?

Answer: A.


Question: Question: Which of the following converts electrical energy into motion?  (A) light switch (B) electric stove (C) light bulb (D) electric fa?

Answer:
D.