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: Which unit of measurement describes an object's length?  
 (A) meter (B) kilogram (C) liter (D) degree

SOLUTION: A

PROBLEM: A bird eats a brightly-colored insect that tastes bad. The bird avoids preying on this type of insect again. This example is best described as  
 (A) a physical characteristic. (B) a learned behavior. (C) an inherited behavior. (D) an adaptation.

SOLUTION: B

PROBLEM: The telephone was invented in Boston by  
 (A) Alexander Graham Bell. (B) Samuel F. B. Morse. (C) Henry Ford. (D) Thomas Alva Edison.

SOLUTION:
A