Answer:
The correct answer is C. critical thinking
Explanation:
Critical thinking involves the use of facts and available information about a subject/topic to arrive at a conclusion. In this case, To determine the validity of the research, Leanne needed to know first if the children were randomly assigned, because, if they weren't, then, the result of the experiment would not be accurate.
The correct answer is A. an opinion
A metaphor is a figure of speech that deals with figurative comparison to something similar, while similes compare things using words like "like" and "such as". Personification is when an inanimate object is given human behavior or personality.
Themselves, that’s the answer I believe.