Cereal companies are blamed for putting too much sugar into their products, which causes obesity. This is bad for them, as it would stop people from bying their products. So they would have an interest in study showing that this is not the case: the study would be a self-interest study (the correct answer) and therefore not be reliable
Answer A is correct, a blood reading of 140/90 is concerning but not severe
Just look for it online and add how shampoo is made and use the who, what, where, when, why, how. Also use your senses
