<em>Immunization</em><em> </em><em>records</em><em> </em><em>should</em><em> </em><em>be</em><em> </em><em>kept</em><em> </em><em><u>until</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>age</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>maturity</u></em><em><u>.</u></em>
Answer:
b. Prospective cohort study
Explanation:
Prospective cohort study -
It is a type of cohort study, which require certain period of time to get the result on a group of similar or equivalent peoples, that shows variation on certain factor, which is studied, is referred to as the prospective cohort study .
The time period for such studies usually varies from several months to years, in order to get the result in a very precise and brief manner .
The studies can be done on various topics like smoking habits , alcohol consumption, sleep cycle, diseases etc.
Hence, from the given scenario of the question,
The survey asking for dietary intake , is an example of the prospective cohort study.
Not really since they are emotions so sometimes it does matter
going to the sun without protection repeated times causes freckles. Belive me my face is full of them.