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.

Q: Diamonds are sometimes used as the tips of drill bits. Which physical property of a diamond MOST likely makes it a good cutting tool?
(A) its electrical properties (B) its thermal properties (C) its hardness (D) its density

A: C
****
Q: A cut to the skin is treated with antiseptic first to avoid
(A) an immune response. (B) a bacterial infection. (C) bruising of tissues. (D) an allergic reaction.

A: B
****
Q: Deer provide food for wolves. How does this relationship also benefit the deer herd?
(A) by protecting deer from other predators (B) by controlling the deer population (C) by decreasing diversity within the herd (D) by protecting the deer from disease

A:
B
****