The correct option is C A- Bowman's capsule
B- Tubular part of nephron
C- Collecting duct
Nephron is the functional unit of kidney and helps in urine production. All the parts asked in the question are parts of nephron.
∙ Bowman's capsule (A) is a cup-like structure at the beginning of the tubular part. It encapsulates a structure within which the blood is filtered. The initial filtrate produced, is passed onto the tubular part (C).
∙ The tubular part is responsible for the reabsorption of useful materials like vitamins, glucose, amino acids, potassium, calcium and water from the primary urine.
∙ The collecting duct (B) collects the incoming urine and absorbs water depending upon whether the body is properly hydrated or is dehydrated. All the collecting ducts merge to form ureter.