Final answer:
The heaviest item is the watermelon at 5.49 lb, which when converted to ounces is 87.84 oz. The closest provided option is 87.79 oz, which is option C.
Step-by-step explanation:
To answer the question about the weight of the heaviest item listed, it's necessary to note that the heaviest item must first be identified and converted to the same unit, ounces. Among the items listed by Charlotte, the watermelon, weighing 5.49 lb, is the heaviest.
Using the conversion factor that 1 lb is equivalent to a mass of 0.4536 kg, we find that 5.49 lb is equal to 5.49 * 0.4536 kg. However, since we need the weight in ounces, and 1 lb corresponds to 16 ounces, we can directly convert 5.49 lb to ounces by multiplying 5.49 by 16.
5.49 lb * 16 oz/lb = 87.84 oz
Looking at the choices given, since we only have to the hundredths place, the best choice that corresponds to our calculation is 87.79 oz, which is option C.