Answer:
A)Single case or small number of cases
B)Vital Statistics
C)Survey data
Step-by-step explanation:
Biological data can be regarded as information/compound that is gotten from sources such as living organisms as well as their products. It is usually a complex data when compare with some other form of data that exist.
Data collection is a systematic way of gathering data from various sources such as observation, questionare and the rest for particular purpose.
Vital statistics can be regarded as accumulated data that is been gathered base on death, births, as well as migration.
Survey data can be regarded as a resultant data which is gotten from sample of correspondents that participated in a particular survey