To answer this question, we need to identify the pattern in the given series of shapes.
The given series starts with a Triangle, followed by a Quadrilateral, then a Pentagon, and finally a Hexagon.
We can observe that each shape in the series has an increasing number of sides. A triangle has 3 sides, a quadrilateral has 4 sides, a pentagon has 5 sides, and a hexagon has 6 sides.
Following this pattern, the next shape in the series should have 7 sides.
Therefore, the correct answer is:
B) Heptagon - This option is correct because a heptagon has 7 sides, which is the next shape in the series.