Cycas circinalis is a source of

Options

A. Timber
B. Resin
C. Sago
D. Essential oil.

Answer

**Step-by-Step Solution:**

1. **Identify the Plant**: The question refers to "Cycas circinalis," which is a species of cycad. It is important to understand its classification and characteristics.

2. **Understand the Characteristics**: Cycas circinalis is known to be an evergreen shrub that can grow up to 3.5 meters tall. It is classified as a gymnosperm, which means it reproduces via seeds but does not produce flowers.

3. **Examine the Uses**: The question provides multiple-choice options regarding what Cycas circinalis is a source of:
- a. Timber
- b. Resin
- c. Sago
- d. Essential oil

4. **Research the Plant's Products**: Among the options, it is essential to determine what Cycas circinalis is primarily known for. Research indicates that the pith of this plant is rich in carbohydrates.

5. **Identify the Correct Answer**: The carbohydrates extracted from the pith of Cycas circinalis are processed to produce sago, a type of starch. Therefore, the correct answer is option C: Sago.

6. **Conclusion**: Cycas circinalis is primarily a source of sago, which is derived from its carbohydrate-rich pith.

**Final Answer**: C. Sago

---