Critical thinking refers to analyzing information objectively and making a logical, reasoned conclusion or judgment from that. It's a critical evaluation of a piece of information. For example, in the exercise, what is presented is a teacher who motivates her students to consider the source and quality of the evidence. Therefore, she is asking her students to evaluate the sources and citations, to use that evidence to support their essays, to engage in critical thinking.
I think it's B. because it shows that the president doesn't do all of the work. but it could be A, because checks and balances practically means the same thing
An agreement that is writing and signed by both parties makes it binding on both of them hence it is enforceable by the law. So an agreement to seek an interest in real estate must be put down in writing also so that it can be enforceable by the law should problem arise.