Which of the following is not an angiosperm?

Angiosperms are flowering plants that have seeds enclosed in a fruit. They makeup about 80% of all plant species on Earth and can be divided into two classes: monocots and dicots. Examples of monocots include lilies, orchids, grasses, and maize, while examples of dicots include groundnut, roses, sunflowers, and oaks.

Pinus, commonly known as pine trees, are gymnosperms, which are non-flowering plants with seeds that are exposed on the surface of scales or cones.