The correct option is A Brassica campestris
Mustard plants (Brassica campestris) are any of several plant species in the genera Brassica. Mustard seed is used as a spice. Grinding and mixing the seeds with water, vinegar or other liquids, creates the yellow condiment known as prepared mustard. The seeds can also be pressed to make mustard oil, and the edible leaves can be eaten as mustard greens.
Thus, the correct answer is option A.