Step 1: Understanding the excretion process during fever.
When the body sweats during a fever, it also loses electrolytes, including sodium chloride (NaCl), which is commonly known as table salt.
Step 2: Analyzing the options.
- (A) Sodium hydroxide: Sodium hydroxide is a strong base and is not excreted in sweat during fever.
- (B) Sodium tetrachloride: This is not a common compound found in the body and is not excreted in sweat.
- (C) Sodium chloride: Correct. Sodium chloride is the main electrolyte excreted in sweat, especially during fever, contributing to the body's salt loss.
- (D) None of the above: This is incorrect, as sodium chloride is excreted in sweat.
Step 3: Conclusion.
The correct answer is (C) Sodium chloride, as it is the primary substance excreted along with sweat, especially during fever.