Answer:
(c) a relative data
Explanation:
in the given statement the exact birth date of neither jhon of joe is given but it is given that jhon is two years older than joe means bothe age are dependent on each other for example when age of joe will be 10 then age of jhin will be 12 similarly when age of joe will be 20 the age of jhon will be 22 means both are relative to each other so this is relative data
