A web application has a registration form screen. The screen has an age field which is a number value. All number fields in the application consider any value $>0$ to be a realistic value. Under what category of data set will you place the value $200?$

Select one:

a$.$ Invalid test data set, as it is practically impossible to have an age of $200$

b$.$ Valid data set, as it is acceptable by the age field

c$.$ Illogical format data set, as it is practically impossible to have an age of $200$

d$.$ Negative test data set, as it opens up new negative acenarios to be tested with an impractical age