The correct answer is A. Thinking critically
Step-by-step explanation:
Critical thinking is a type of analytical process that implies considering and analyzing information by yourself to create a judgment based on evidence, facts, and logic rather than just believing all information. In the case of Char, he shows he is thinking critically because he does not accept the information provided by her friends but instead she decides to research by her own based on evidence and by studying critically and skeptically different sources of information, which implies she should be able to create her judgment based on facts and evidence.