The answer would be C I believe.
An adjective to describe differences and/or variations. Could be liable to change
Ethos is the appeal to ethics. It uses your beliefs to try to convince someone that you should believe them
What are you answer choices?
The main reason for asking yourself what you agree and disagree with in a text is that it helps you prepare to qualify the author's claim (C). In other words, by asking yourself what you believe about a text you read, you start the process of evaluating the text, because you assess the author's opinions comparing and contrasting them to yours.
Answers A and B, are both complementary so you cannot choose just one of them. In order to be correct they have to be combined, because by asking yourself what you agree or disagree with in a text you may choose to defend some of the author's claims while challenging others. Also, answer D is wrong because deciding which of the ideas you agree or disagree with is not related to the strengths of the text. You may disagree with an author's claim but this doesn't mean that it wasn't supported well by him/her. So, this could not be considered a weak point of the text.
Answer:
Water is defined as an essential nutrient because it is required in amounts that exceed the body's ability to produce it. All biochemical reactions occur in water. Water is also required for digestion, absorption, transportation, dissolving nutrients, elimination of waste products and thermoregulation
