▲ 閱讀下文，回答第 46−50 題        People living in Taiwan like to eat fruit. Seasonal fruits from all over the island are available in traditional markets and supermarkets. Farmers often need a lot of land to grow their fruits. However, some types of fruit do not require any outdoor space to grow your own fruit. You just need patience because it usually takes more than a year before you can enjoy lemons, avocados, or other delicious fruits when they are grown indoors.
        Lemons, oranges, grapefruits, and limes are types of citrus fruit that can all be grown indoors. They will also give your home a citrus aroma all year round. The process of planting such fruit is actually quite simple. You just need to rinse the seeds with water and plant them in damp soil, river sand, or special soil suitable for citrus fruits. Each seed should be placed in a pot. The young plants that have grown from the seeds should get enough light, but they should be protected from midday sun and dry air. The winter weather is also suitable for your citrus plants.
        An avocado can be easily grown from its pit. You need to remove the flesh around the pit carefully, wash it gently, and then plant it in the soil. Alternatively, you can stick three toothpicks, 120 degrees apart into the middle of the seed and balance the pit in a cup of water without inserting it into the water completely. Once the plant has developed a root system in the water, take it out, and bury it in the soil. It will be better to keep the temperature at 18°C before the leaves come into bloom. Avocados love sunlight and heat, so place your avocado plant next to a sunny windowsill. The more light it gets, the better fruit it produces.
【題組】46. What is the best title for this passage?
(A) The Fruits You Can Grow Indoors
(B) The Fruit Trees to Grow in Taiwan
(C) How to Plant Fruit Trees Outdoors
(D) How Much Soil Needed to Grow Fruits