Q: 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.
A book placed on a table is observed to remain stationary. Which statement about the observation would be considered a fact rather than an opinion?
(A) The book is not very heavy. (B) The table pushes up on the book. (C) The book probably has a sticky cover. (D) The table is composed of a stronger material than the book.
A:
B