All Oil-Based Paint Can Stain Clothing

All oil-based paint can stain clothing. All watercolor paint can be cleaned from clothing. This paint is a mix of oil-based and watercolor paints. Therefore, it will stain clothing but not as severely as pure oil-based paint.
Which of the following passages uses flawed reasoning that most closely resembles the above passage?

A) All children who eat nutritious food have a lot of energy. But some children who eat poorly also have a lot of energy. Abigail eats food that is somewhat nutritious. Therefore, Abigail is somewhat energetic.
B) Spinach is a very healthy food. White rice, however, is not very nutritious. If Barbara eats a dish made from spinach and white rice, it will be moderately nutritious.
C) All employees of XYZ Manufacturing are welders. All employees of ABC Construction are contractors. Reggie has brothers employed as both welders and contractors. Thus, Reggie must have family employed by both XYZ and ABC.
D) Roy keeps his shoes polished and in excellent condition. Raymond does not and never polishes his shoes. In this closet, half the shoes are polished and half unpolished. The polished half must be Roy's and the unpolished half Raymond's shoes.
E) All nurses take coursework in biology. All architects take coursework in math. Evette was a nurse but went back to school to become an architect. She must have taken coursework in both biology and in math.