Data generalizability is the:

a$)$ degree to which the data is an accurate portrait of the target population.

b$)$ degree to which a specific question or investigated issue leads the respondent to give a socially expected response.

c$)$ level of preparation required to create an appropriate environment for the respondent.

d$)$ degree to which respondents share certain similarities.

e$)$ percentage of the general population that is the subject of the market