The correct answer is: uncertainty, or lacking confidence.
Explanation:
This answer comes from the meaning of tentative, and also the context in which the word is being used. The sentence states that Jody had to answer a question, most likely, but when asked, she did not immediately respond to it, and her reaction to it was cautious and tentative because of her fear of publis speaking. The context clue words reaction and the complement because of her fear of speaking in public point the way to know that cautious and tentative talk about Jody´s reaction, and that is why the correct answer is her reaction should caution, or was cautious, and showed uncertainty, or a lack of confidence in herself.
Most people mentally visualize time as running either forward or backward.
Explanation: From the sentence above in B, we are able to deduce that people mentally visualize time as running either forward or backward. This is based on the research done on English and Aymara.