Sarah claims that most people are happy; she knows this because she read it on Wikipedia. Jake concludes that Sarah does not have enough evidence to make the claim that most people are happy. What two elements of critical thinking is Jake demonstrating

Evaluating the argument and forming a conclusion based on the evidence.

Explanation:

Critical thinking is an object-oriented method of consciously and skilfully conceptualizing, integrating, interpreting, synthesizing or assessing knowledge gathered or produced by understanding, practice, reflection, logic or communication as a key to belief and action. Six steps of critical thinking include knowledge, comprehension, application, analyze, evaluation and drawing conclusion. As per the question, Jake demonstrates the last two steps of critical thinking.

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