Which of the following is a type of Pansy?

Viola is indeed a type of Pansy. Pansies (Viola tricolor var. hortensis) belong to the Viola genus, which encompasses a wide variety of flowering plants. The characteristics that define pansies include vibrant colors, a unique face-like appearance of the flowers, and their ability to thrive in a range of growing conditions.

The other plants listed do not fall under the Viola genus. Petunias, while they are popular garden flowers, belong to a different family (Solanaceae). Hydrangeas are large flowering shrubs from the Hydrangeaceae family, and daffodils, known for their trumpet-shaped flowers, belong to the Amaryllidaceae family. Understanding these classifications helps clarify why Viola is related to Pansies, while the others are not.