Read the given statements and select the correct option.
Statement 1 : Traffic jams are likely to cause giddiness, exhaustion, reduced vision, etc.
Statement 2 : Carbon monoxide from vehicles causes these problems by reducing `O_(2)`-carrying capacity of haemoglobin.

Options

A. Both statements 1 and 2 are correct.
B. Statement 1 is correct but statement 2 is incorrect
C. Statement 1 is incorrect but statement 2 is correct.
D. Both statements 1 and 2 are incorrect.

Explanation

To solve the question, we need to analyze both statements and determine their accuracy.

### Step 1: Analyze Statement 1
- **Statement 1** claims that traffic jams are likely to cause giddiness, exhaustion, reduced vision, etc.
- **Explanation**: Traffic jams can lead to prolonged exposure to vehicle emissions, which can cause various health issues. The accumulation of pollutants, particularly in congested areas, can indeed result in symptoms like giddiness, exhaustion, and reduced vision due to poor air quality.

### Step 2: Analyze Statement 2
- **Statement 2** states that carbon monoxide from vehicles causes these problems by reducing the oxygen-carrying capacity of hemoglobin.
- **Explanation**: Carbon monoxide (CO) is a harmful gas emitted from vehicles. It binds with hemoglobin in the blood to form carboxyhemoglobin, which reduces the blood's ability to carry oxygen. This can lead to symptoms such as giddiness, headaches, and decreased vision, as the body is not receiving enough oxygen.

### Step 3: Conclusion
- Both statements are correct. Traffic jams can lead to health issues due to the accumulation of pollutants, and carbon monoxide from vehicles indeed reduces the oxygen-carrying capacity of hemoglobin, contributing to these health problems.

### Final Answer
- Therefore, the correct option is that both statements are true.