Which of these age groups has been defined as the period of adolescence by the World Health Organisation?

Options

A. 5-10 years
B. 7-12 years
C. 10-19 years
D. 18-25 years

Answer

To determine the age group defined as the period of adolescence by the World Health Organization (WHO), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Adolescence**:
- Adolescence is a transitional stage of physical, physiological, and psychological development that occurs between puberty and adulthood.

2. **Identify the Age Range for Puberty**:
- For males, puberty typically begins around the ages of 13 to 14 years.
- For females, puberty generally starts between the ages of 10 to 12 years.

3. **Determine the End of Adolescence**:
- The period of adolescence continues until adulthood, which is defined as starting at 18 years and older.

4. **Combine the Information**:
- Based on the information, adolescence is generally considered to occur from around 10 to 19 years of age.

5. **Select the Correct Option**:
- From the options provided, the age group that fits this definition is 10 to 19 years.

### Final Answer:
The age group defined as the period of adolescence by the World Health Organization is **10 to 19 years**.

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