Select the most appropriate option to fill in blank number 5.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. station.
Context: The sentence uses a metaphor to describe the role of veins in the circulatory system, implying that veins act as a point where purification of blood takes place.
Meaning of the words:
- Camp: A temporary shelter or site.
- Stand: A structure or stall, often for display or sale.
- Station: A place where a particular activity or process occurs.
- Stage: A point or level in a process or development.
Correct word: Station
Reason: The word 'station' metaphorically suits the idea of veins serving as a fixed point or process center — in this case, for purification. “Purifying station” is a commonly used phrase in scientific and descriptive contexts, while the other words do not logically or idiomatically fit.
Hence the chosen option is correct.