The correct answer is: B. Auto batteries are secondary wet-cell batteries.
A primary battery is a battery that cannot be recharged. Once the battery is discharged, it cannot be used again and must be replaced. A secondary battery is a battery that can be recharged. Once the battery is discharged, it can be recharged and used again.
A wet-cell battery is a type of battery that uses a liquid electrolyte. The electrolyte is a substance that conducts electricity. The liquid electrolyte in a wet-cell battery is usually sulfuric acid.
A dry-cell battery is a type of battery that does not use a liquid electrolyte. The electrolyte in a dry-cell battery is usually a paste or a gel.
Auto batteries are secondary wet-cell batteries. This means that they can be recharged and used again. Auto batteries use a liquid electrolyte, which is usually sulfuric acid.
Here is a brief explanation of each option:
- A. Auto batteries are primary wet-cell batteries. This is incorrect because auto batteries are secondary batteries, not primary batteries.
- B. Auto batteries are secondary wet-cell batteries. This is the correct answer. Auto batteries are secondary batteries, and they use a liquid electrolyte.
- C. Auto batteries are secondary dry-cell batteries. This is incorrect because auto batteries are wet-cell batteries, not dry-cell batteries.
- D. Auto batteries are primary dry-cell batteries. This is incorrect because auto batteries are secondary batteries, not primary batteries.
- E. None of the above. This is incorrect because option B is the correct answer.