Describe conservation of matters

Which of the following does not describe conservation of matters? Group

of answer choices (A)3 hydrogen atoms combine with 1 nitrogen atom to form ammonia (NH3). (B)Glucose and oxygen are turned into carbon dioxide and water during respiration. (C)Carbon dioxide and water are turned into glucose and oxygen during photosynthesis. (D)The breakdown of methane (CH4) into 2 carbon atoms and 3 hydrogen atoms