Compared to Kinsey's Work Several Decades Earlier,the National Health and Social

Compared to Kinsey's work several decades earlier,the National Health and Social Life Survey of the early 1990s:

A) relied almost exclusively on federal funding.
B) used written questionnaires instead of oral interviews.
C) used better sampling techniques.
D) restricted their sample to a smaller geographic region.
E) is regarded as less scientifically accurate.