T2: Given the following relation schema R(B, N, O, A, T, C) and the set of functional dependencies F = { COT, OTAC, CN=B, CBA, BN}: 1- Show all keys of R 2- Determine Fc 3- Is the decomposition (C,0,A), (C,N,B), (C,T) lossless? Is it 3NF? Why? 4- Decompose R in a BCNF ? Is it 3NF? Why? T2: Given the following relation schema R(B, N, O, A, T, C) and the set of functional dependencies F = { COT, OTAC, CN=B, CBA, BN}: 1- Show all keys of R 2- Determine Fc 3- Is the decomposition (C,0,A), (C,N,B), (C,T) lossless? Is it 3NF? Why? 4- Decompose R in a BCNF ? Is it 3NF? Why