The art of growing dwarf trees is

Options

A. Bonsai
B. Horticulture
C. Silviculture
D. Arboriculture

Answer

To solve the question "The art of growing dwarf trees is," we will analyze the options provided and determine which one correctly describes this art.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the specific term that refers to the art of growing dwarf trees.

2. **Analyzing the Options**:
- **Option A: Bonsai**: This term is known for the practice of cultivating miniature trees that mimic the shape and size of full-sized trees. This is a strong candidate for the answer.
- **Option B: Horticulture**: This term refers to the science and art of growing fruits, vegetables, nuts, seeds, herbs, sprouts, mushrooms, algae, flowers, seaweeds, and non-food crops such as grass and ornamental trees and plants. It does not specifically refer to dwarf trees.
- **Option C: Silviculture**: This term is related to the study and management of forest trees and stands. It does not pertain to dwarf trees.
- **Option D: Arboriculture**: This term deals with the cultivation and management of trees and shrubs, primarily for ornamental purposes. While it involves trees, it does not specifically focus on dwarf trees.

3. **Identifying the Correct Answer**: Given the definitions and focus of each option, the correct answer is **Option A: Bonsai**, as it specifically refers to the art of growing dwarf trees.

4. **Conclusion**: The art of growing dwarf trees is known as bonsai.

### Final Answer:
The art of growing dwarf trees is **Bonsai**.