Linseed is obtained from the plant called flax. Flax is a crop that is cultivated for both its seeds, which are used to produce linseed oil, and its fibers, which are used to make linen. Linseed, also known as flaxseed, is a small, brown seed that is rich in omega-3 fatty acids and other beneficial nutrients. It is commonly used in cooking and baking, as well as in the production of various products such as paints, varnishes, and linoleum. Linseed oil has been used for centuries as a natural wood finish and is also utilized in the manufacturing of linseed oil-based paints. Therefore, the correct answer is option 2, flax.