This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
A new test to measure B.P has successive reading of same person as follow: 110/70 mmHg, 128/80 mmHg, 132/70 mmHg, 160/90 mmHg. The given test has, when mean B.P =120/80mmHg. 
Select and explain. 
A. Low validity, Low reliability, B. Low validity, high reliability, C. High validity, low reliability, D. High validity, high reliability
A: Low validity, Low reliability
Answer: A: Low validity, Low reliability 
Explanation: None