Horticulture crops refer to the cultivation of plants for their fruits, vegetables, flowers, or ornamental purposes. These crops are primarily grown in gardens, nurseries, and greenhouses. Among the options provided, option D, which includes fruits and vegetables, is the correct answer as both fruits and vegetables are considered horticulture crops. Let's explore this further.

Fruits:
- Fruits are the mature ovaries of flowering plants and are consumed as food due to their sweet or savory taste. They are an essential part of our diet and provide various nutrients, vitamins, and minerals.
- Examples of horticulture fruits include apples, oranges, bananas, grapes, strawberries, mangoes, and watermelons. These crops require specific cultivation techniques and are grown for commercial purposes in orchards and plantations.

Vegetables:
- Vegetables are edible parts of plants that are consumed as food. They are rich in essential nutrients and contribute to a healthy diet. Vegetables can be further classified into leafy vegetables, root vegetables, bulb vegetables, etc.
- Common examples of horticulture vegetables include tomatoes, potatoes, carrots, spinach, lettuce, onions, cucumbers, and bell peppers. These crops are cultivated in kitchen gardens, farms, and greenhouses.

Other options:
- Tea and coffee (option A) are not horticulture crops but are rather categorized as plantation crops. They are grown in large plantations and require specific climatic conditions.
- Cotton and jute (option B) are classified as fiber crops. Cotton is grown for its fibers, which are used in textile industries, while jute is cultivated for its strong fibers used in making ropes, bags, and other products.
- Rubber and tobacco (option C) are classified as plantation crops. Rubber is cultivated for its latex, which is used in various industries, while tobacco is grown for its leaves, which are used for smoking and in the manufacturing of tobacco-based products.

In conclusion, horticulture crops primarily include fruits and vegetables. These crops are cultivated for their nutritional value, taste, and ornamental purposes. They play a crucial role in our diet and contribute to the overall agricultural sector.