TASK DEFINITION: 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.
PROBLEM: People are developing electric cars that would replace gasoline-burning cars. One major advantage of the electric car is that it  
 (A) accelerates faster. (B) causes less pollution. (C) gives a smoother ride. (D) needs no battery.

SOLUTION: B

PROBLEM: When a cup of water at room temperature is put in a freezer, the water's state of matter will change from  
 (A) liquid to gas (B) gas to liquid (C) liquid to solid (D) solid to liquid

SOLUTION: C

PROBLEM: A solution of lead (II) nitrate reacts with a solution of sodium iodide to produce a yellow solid of lead (II) iodide and aqueous sodium nitrate. Which of these illustrates the reaction?  
 (A) Pb(NO_{3})_{2}(aq) + 2NaI(aq) -> PbI_{2}(s) + 2NaNO_{3}(aq) (B) L_{2}N(aq) + SI(aq) -> L_{2}I(s) + SN(aq) (C) Pb_{2}N(aq) + NaI(aq) -> Pb_{2}I(s) NaN(aq) (D) Fe(NO_{3})_{2}(aq) + 2NaI(aq) -> FeI_{2} + 2NaNO_{3}(aq)

SOLUTION:
A