1. Consider this relation..
a. Candidate keys [AB, BC, BD]
b. Not in 3NF or BCNF

2. Consider this relation...
a. Candidate keys [A, B, C, D]
b. It is in 3NF and BCNF

3.
i. Not in 3NF or BCNF
ii. Not in 3NF or BCNF
iii. In 3NF not in BCNF