The delimitation of the study is referred to as

Correct Answer: B

Rationale: Delimitation defines the study's boundaries, set by the researcher. 'Scope of the study,' is correct because it outlines what's included (e.g., population, time), per research texts (e.g., Creswell). 'Limitation of the study,' addresses constraints beyond control. 'Relevance of the study,' justifies importance. 'Objective of the study,' states goals. Scope's role in setting intentional limits—e.g., nurses in urban hospitals'—distinguishes B as the accurate answer.

Correct Answer: D

Rationale: Arteries withstand pulse pressure via elasticity. 'An elastic tunica media,' is correct, allowing stretch and recoil (e.g., aorta), per anatomy (e.g., Ross). 'A thick tunica interna,' is less relevant. 'A rigid tunica media,' resists stretch. 'A flexible endothelium,' is minor. Elasticity in the media makes D the accurate answer.

Correct Answer: A

Rationale: The thyroid gland's functional unit is the follicle, where thyroid hormones are synthesized and stored. 'Follicle,' is correct, per histology texts like Ross and Pawlina, consisting of follicular cells around colloid. 'Acini,' are exocrine gland units (e.g., pancreas). 'Islets of Langerhans,' are pancreatic endocrine units. 'Alveoli,' are lung units. Follicles' role in T3/T4 production distinguishes A as the accurate answer, specific to thyroid anatomy.

Correct Answer: C

Rationale: Monosaccharides are simple sugars, single units not hydrolyzed further. 'Maltose,' is correct as the exception, a disaccharide of two glucose units, per biochemistry texts like Lehninger. 'Glucose,' 'Fructose,' and 'Galactose,' are monosaccharides, basic sugar building blocks. Maltose's dimeric structure, requiring hydrolysis, distinguishes C as the accurate answer, unlike the single-unit sugars.

Correct Answer: D

Rationale: Micturition (urination) is regulated by the autonomic nervous system, with parasympathetic and sympathetic inputs, though somatic control aids voluntary aspects. 'Autonomic,' is correct, per physiology (e.g., Tortora), coordinating bladder contraction (parasympathetic) and inhibition (sympathetic). 'Somatic,' controls external sphincter voluntarily, not the full process. 'Parasympathetic,' is partial, not whole. 'Sympathetic,' inhibits, not controls alone. Autonomic's overarching role makes D the precise answer.