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: The color in a Tortoiseshell cat can only be produced by two X chromosomes. This would mean that these types of cats are always
(A) male. (B) female. (C) fertile. (D) aggressive.
A:
B