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.

In the forest, one type of tree produces special seeds. These seeds start to grow only after going through a fire. In the fire, the adult trees are destroyed. Which resources, needed for growth, are now available to the newly growing seeds?
(A) sunlight and wind (B) sunlight and space (C) soil and pollen producers (D) pollen producers and space
B

Which is an example of a form of electrical energy?
(A) lightning (B) windmill (C) radio waves (D) sound waves
A

What is the composition of the nucleus of an atom?
(A) ions and electrons (B) electrons and protons (C) protons and neutrons (D) neutrons and electrons
C