A spokesperson for a car manufacturer states, "There are two popular arguments that favor the 55 miles/hr speed limit. First, it saves lives. Second, it saves wear and tear on the car. However, millions of people drive faster than the speed limit, and their cars show no signs of breakdown. So, I say, there is no sense to the 55 miles/hr speed limit." The speaker's reasoning is best evaluated as:

A. Call the doctor and report that her mother has high blood pressure: While it is important to consult a doctor, it is not appropriate for the woman to self-diagnose her mother with high blood pressure based solely on a magazine article. The doctor should assess the situation and provide a proper diagnosis.
B. Wait for further signs and symptoms to develop: Delaying action could be dangerous. If her mother is showing symptoms that could indicate a health issue like high blood pressure, it's important to seek medical advice as soon as possible, even if the symptoms haven't fully developed.
C. Realize these may not be signs and symptoms of high blood pressure: While this is a valid consideration, it should not lead to inaction. Seeking professional medical guidance is important, as high blood pressure can be a serious condition that requires proper assessment and treatment.
D. Seek medical guidance based on the signs and symptoms: This is the best course of action. The woman should consult a healthcare provider to discuss her mother’s symptoms. Only a medical professional can properly diagnose and recommend treatment based on the signs and symptoms observed.

A. If Spot is lazy but Fido is not quiet, it is not hot: This must be true. According to the assumption, when it is hot, both Fido and Spot are lazy and quiet. If Spot is lazy but Fido is not quiet, then it contradicts the assumption that both dogs should be lazy and quiet when it's hot. Therefore, it must not be hot.
B. If it is hot, Fido is lazy and Spot is quiet: This is incorrect because the assumption says both Fido and Spot are lazy and quiet when it's hot, but this statement only mentions Fido being lazy and Spot being quiet. The assumption requires both dogs to be both lazy and quiet, not just one characteristic for each dog.
C. If it is not hot, Fido and Spot are neither lazy nor quiet: This is not necessarily true. The assumption only applies when it is hot, and it doesn’t provide information about Fido and Spot’s behavior when it’s not hot. They could still be lazy or quiet, but it isn’t guaranteed.
D. If Fido is quiet or Spot is lazy, it is hot: This is incorrect. The assumption only states that when it is hot, both dogs are lazy and quiet. It does not claim that if one dog is quiet or lazy, it must be hot. Other circumstances could make Fido quiet or Spot lazy regardless of the temperature.