**Core Concept**
The development of drawing shapes and figures is an important milestone in a child's cognitive and fine motor skills development. Drawing a triangle requires a certain level of spatial awareness, hand-eye coordination, and understanding of geometric shapes. This skill is typically evaluated as part of the Denver Developmental Screening Test.

**Why the Correct Answer is Right**
Drawing a triangle is a specific task that requires a child to have a certain level of cognitive and fine motor skills. Children typically develop the ability to draw a triangle around 6 years of age, as their brain matures and they gain better control over their hands and fingers. This skill is a reflection of their ability to understand and replicate geometric shapes, which is an essential aspect of their cognitive development.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because drawing a circle is a simpler task that requires less cognitive and fine motor skills compared to drawing a triangle.
**Option B:** This option is incorrect because drawing a square is a more complex task that requires a child to understand and replicate a more complex geometric shape.
**Option C:** This option is incorrect because drawing a triangle is not typically a skill that children develop at this age, as it requires a higher level of cognitive and fine motor skills.

**Clinical Pearl / High-Yield Fact**
Children typically develop the ability to draw a triangle around 6 years of age, which is an important milestone in their cognitive and fine motor skills development. This skill is often used as an indicator of a child's overall developmental progress.

**Correct Answer: C. 6 years**