Step 1: Understanding correlation.
The relationship between the consumption of fuel and the distance covered by a vehicle is generally positive because, as the distance increases, the fuel consumption also increases, assuming the vehicle's efficiency is constant.
Step 2: Analyzing the options.
(A) Positive: Correct. The correlation between fuel consumption and distance is generally positive because as the distance increases, fuel consumption also increases.
(B) Negative: Incorrect. A negative correlation would imply that as one variable increases, the other decreases, which is not true in this case.
(C) Zero: Incorrect. Zero correlation would mean no relationship between the variables, which does not apply here.
(D) Can't say: Incorrect. The correlation is positive, so we can say this with certainty.
Step 3: Conclusion.
The correct answer is (A) positive, as the consumption of fuel and the distance covered are positively correlated.
Final Answer:} Positive.