Question

Fill in the blank.
Tshangu lake, the pride of Sikkim, is a clean lake because _______.

• A. It is 12,000 feet up in the mountains
• B. No human activity is allowed in this lake
• C. Lord Shiva resides here
• D. None of the above

Answer 1

Answer: (B)

No human activity is allowed in this lake

Option B: The lines mention: "Tshangu lake is absolutely clean and fresh. No one is allowed to enter it, no boating nor throwing anything.". Hence the reason behind why the "Tshangu lake" is "absolutely clean and fresh" is given that no one is allowed and nobody is allowed to throw anything while boating. Hence B is the correct option.
Option A: This line: "At approximately 12,000 feet... is this clean and serene lake" does not mean that because the lake is at a height, it's clean. The line in A states a fact and not the required reason. Hence option A is incorrect.
Option C: Similarly, the line in C also states a fact. It is not because of the temple of Shiva that the lake is clean. Hence C is also incorrect.
Option D is incorrect because the answer lies in B.