Correct Answer: C

Rationale: Consistency refers to the quality of staying the same in behavior or level. Thickness is a synonym for consistency as it implies a state of being dense, compact, or solid throughout, which aligns with the idea of staying the same. Conversely, appearance, volatility, and color do not directly relate to the concept of consistency. 'Appearance' refers to how something looks, 'volatility' refers to how easily something changes, and 'color' refers to the hue or shade of something, none of which capture the essence of consistency.

Correct Answer: C

Rationale: Consistency refers to the quality of staying the same in behavior or level. Thickness is a synonym for consistency as it implies a state of being dense, compact, or solid throughout, which aligns with the idea of staying the same. Conversely, appearance, volatility, and color do not directly relate to the concept of consistency. 'Appearance' refers to how something looks, 'volatility' refers to how easily something changes, and 'color' refers to the hue or shade of something, none of which capture the essence of consistency.

Correct Answer: B

Rationale: In this context, 'badly' is the appropriate adverb to describe the intensity of the fear caused by the heart attack. 'Severely' and 'intensely' do not convey the same meaning in this sentence. 'Profoundly' refers more to depth or seriousness of an emotion, which doesn't fit the context of fear caused by a heart attack.

Correct Answer: B

Rationale: The correct answer is B: 'Misgivings'. Trepidation is defined as a feeling of fear or anxiety about something that may happen. Choice A ('Fear') is too broad and does not capture the specific sense of unease that trepidation conveys. Choice C ('Confidence') is the opposite of what trepidation represents. Choice D ('Doubt') is related to uncertainty but does not fully encapsulate the sense of fear and anxiety associated with trepidation.

Correct Answer: B

Rationale: The correct answer is B: 'To expel feces.' Defecate refers to the act of eliminating solid waste from the body. Choice A, 'To retain feces,' is incorrect as defecation involves getting rid of feces. Choices C and D, 'To eliminate fluid' and 'To excrete mucus,' are also incorrect as they do not accurately define the term 'defecate.'