Convenient, nutritious, cheap and available year round, carrots are not just for rabbits. But the Easter Bunny would certainly approve of a carrot dish as part of a holiday meal.
Because of their natural sweetness, carrots have long been part of the dessert menu as well as the salad bar. In the Middle Ages, carrots were used in sweet cakes and other desserts. They are still used in sweets in the Middle East and Asia, and are often preserved in jams. In California, carrot juice is popular.
Carrots were first cultivated in central Asia and the Middle East, and used as a medicine rather than as a vegetable. But carrots weren’t always orange. In the 10th century, they were white or purple. The Dutch developed orange carrots in the 1600s.
Carrots are a great convenience food. They’re inexpensive and available year round. And even children who won’t touch other vegetables eat carrots.
Choose carrots with a bright, even color and smooth skin. Avoid limp(萎蔫的) ones, which are past their prime. Pick medium-sized carrots, which are sweeter and more flavorful than small ones, and more tender than larger, more mature carrots.
Before storing, cut off any greens, since they can absorb moisture. Avoid storing carrots near apples, which emit a gas that can give carrots a bitter taste.

Which is not an advantage of carrots mentioned in the passage（）