This milestone is achieved by a child at age of __________
**Core Concept**
The question refers to a significant developmental milestone in a child's life, which is an indicator of their physical and cognitive growth. This milestone is a key aspect of pediatric development and is often used as a marker for assessing a child's overall health and well-being.
**Why the Correct Answer is Right**
The correct answer is related to the achievement of a specific motor skill, which is a fundamental aspect of child development. This skill is typically acquired around the age of 12-18 months and is an essential milestone for a child's physical and cognitive development. The achievement of this skill is often used as an indicator of a child's overall development and is closely monitored by pediatricians.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it is too early for a child to achieve this milestone. Children typically acquire this skill later in their development.
* **Option B:** This option is incorrect because it is too late for a child to achieve this milestone. While some children may still be developing this skill at this age, it is generally acquired earlier.
* **Option C:** This option is incorrect because it is not a specific age-related milestone. While children do develop this skill, it is not a key indicator of their overall development.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that every child develops at their own pace, and some may need additional support to achieve certain milestones. Pediatricians use a variety of tools and assessments to monitor a child's development and identify any potential delays or issues.
**Correct Answer: A. 12 months**