You are given a science question (hard-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.

Which animals would most likely be helped by flood in a coastal area?  
 (A) deer (B) raccoons (C) alligators (D) coyotes
C

Scientists discovered that although infectious bacteria may develop immunity to antibiotic medications, some bacteria are unable to resist certain peptides, which act as natural antibiotic substances inside the human body. This discovery led to the development of which new technology?  
 (A) artificial substances that mimic human peptides (B) antibiotics that can be absorbed through the skin (C) bacteria that attack antibiotic-resistant organisms (D) antibiotics that adapt in response to bacterial immunity
A

Which statement best describes the process of respiration?  
 (A) Oxygen and sugar are used in the process that provides energy to cells; water and carbon dioxide are its waste products. (B) Water and sugar are used to in the process that provides energy to cells; oxygen and carbon dioxide are its waste products. (C) Oxygen and carbon dioxide are used in the process that provides energy to cells; sugar and water are its waste products. (D) Carbon dioxide and sugar are used in the process that provides energy to cells; water and oxygen are its waste products.

A