Correct Answer: C

Rationale: Another word for UNDER OBSERVATION is surveillance. Surveillance refers to the close observation of a person, group, or place, especially in a secret or discreet manner. It involves monitoring and watching over someone or something closely for a specific purpose. Therefore, the word 'surveillance' is the most suitable synonym for under observation in this context. Choice A, 'Cognition,' refers to the mental process of acquiring knowledge and understanding through thoughts, experience, and the senses; it is not synonymous with under observation. Choice B, 'Isolation,' means the process or fact of isolating or being isolated, which does not convey the idea of close monitoring. Choice D, 'Assessment,' involves evaluating or judging the nature, ability, or quality of something, which is different from the act of observing closely.

Correct Answer: B

Rationale: The term 'Occluded' means something is closed or obstructed, not open as in choice A. It is more than just partially obstructed as in choice C. It does not mean expanded as in choice D. Therefore, the correct answer is B, 'Closed or obstructed.'

Correct Answer: B

Rationale: Altruistic individuals exhibit selfless concern for others, demonstrating a charitable nature. Therefore, being described as charitable aligns with the trait of altruism. Choice A, 'Selfish,' is the opposite of altruistic as it denotes concern only for oneself. Choice C, 'Greedy,' implies a strong desire for more and is not synonymous with altruism. Choice D, 'Hateful,' suggests a feeling of strong dislike, which is not reflective of altruistic behavior.

Correct Answer: B

Rationale: The correct answer is B: 'Praiseworthy.' Exemplary is used to describe something that is commendable, outstanding, or worthy of praise. Therefore, the meaning of 'Exemplary' is praiseworthy, not disappointing, ordinary, or unacceptable. Choice A is incorrect because 'Disappointing' is the opposite of 'Exemplary.' Choice C is incorrect as 'Ordinary' does not reflect the exceptional nature of 'Exemplary.' Choice D is incorrect as 'Unacceptable' is the opposite meaning of 'Exemplary.'

Correct Answer: A

Rationale: Placing 'trying not to wake the baby' at the beginning as in option A clarifies the purpose of the action right away, improving the sentence's flow.