Solution:Apple is commercially cultivated in temperate and subtropical regions. So option (c) is correct. Flowers do not grow in Apple trees in tropical regions because this process requires cold climatic conditions.Apple trees need a period of cold temperatures (chilling hours) during dormancy to break their winter rest and initiate flowering and fruit development in the spring. Tropical regions typically lack the necessary cold temperatures for sufficient chilling hours, which is why apple trees struggle to flower and produce fruit in these areas.
Even within tropical regions, higher altitudes and specific microclimates can create cooler conditions that may be suitable for apple cultivation, allowing for the development of specific apple varieties that require fewer chilling hours. Some apple varieties are better adapted to warmer climates than others, and these varieties are often grown in subtropical regions.
