This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non communicable diseases, Subject name: Social & Preventive Medicine
BP tracking means? 
Select and explain. 
A. High BP of a child tends to rack along the life, B. Adults who have high BP today definitely had high BP as child, C. Daily measurement of BP and recording it to keep a track, D. BP should be monitored by a BP tracker
C: Daily measurement of BP and recording it to keep a track
Answer: C: Daily measurement of BP and recording it to keep a track 
Explanation: Park's textbook of preventive and social medicine 23rd edition. IF blood pressure levels of individuals were followed up over a period of years from early childhood into adult life, then those individuals whose pressure were initially high in the distribution would probably will continue in the same tract as adults. Low blood pressure levels tend to remain low and high level tend to become higher as individuals grow older.this phenomenon of persistence of rank order of blood pressure has been described as tracking..