IQ test. Choose answer stock vector. Illustration of quiz - 83381203 - Free Printable

To solve this puzzle, we need to find the pattern in the grid of shapes. Let's look at the rows and columns to see what rules apply.

Step 1: Analyze the Shapes
Let's look at the types of shapes in each row and column.
- Row 1: Triangle, Circle, Square
- Row 2: Circle, Square, Triangle
- Row 3: Square, Triangle, ?

Notice that each row contains one of each shape: a triangle, a circle, and a square.
- Row 3 currently has a Square and a Triangle.
- Therefore, the missing shape must be a Circle.

Step 2: Analyze the Colors
Now let's look at the colors used: Blue (Teal), Yellow, and Red (Orange).
- Row 1: Blue Triangle, Yellow Circle, Red Square. (One of each color)
- Row 2: Red Circle, Blue Square, Yellow Triangle. (One of each color)
- Row 3: Yellow Square, Red Triangle, ?

Following the pattern, each row must have one Blue shape, one Yellow shape, and one Red shape.
- Row 3 currently has a Yellow shape and a Red shape.
- Therefore, the missing shape must be Blue.

Conclusion
The missing piece needs to be a Blue Circle.

Looking at the options:
- A is a Yellow Triangle.
- B is a Red Square.
- C is a Blue Circle.
- D is a Blue Triangle.
- E is a Yellow Circle.
- F is a Red Circle.

Option C matches our findings perfectly.

Final Answer:
C