Final answer:
Using the conversion rates provided, 3 grams of fuel is equivalent to 9 carrots on planet Zubas. However, this correct answer is not listed among the options provided in the question, indicating that there may be an error.
Step-by-step explanation:
To solve this question, we need to convert grams of fuel into carrots using the given conversions. First, let's find out how many grapes are equivalent to 3 grams of fuel:
- 1 gram of fuel = 2 grapes
- 3 grams of fuel = 2 grapes/gram × 3 grams = 6 grapes
Next, we'll determine how many watermelons are in 6 grapes:
- 2 grapes = 3 watermelons
- 6 grapes = (3 watermelons/2 grapes) × 6 grapes = 9 watermelons
Finally, let's convert watermelons to carrots:
- 1 watermelon = 1 carrot
- 9 watermelons = 9 carrots
Therefore, the Zubans use 9 carrots of fuel every day for their bodies. The correct answer is not listed among the options provided in the question; thus, it appears there may be an error in the question or the list of answer options.