Let $R (A, B, C, D, E, P, G)$ be a relational schema in which the following functional dependencies are known to hold: $AB \to CD, DE \to P, C \to E, P \to C$ and $B \to G.$ The relational schema $R$ is
- in $\text{BCNF}$
- in $\text{3NF}$, but not in $\text{BCNF}$
- in $\text{2NF}$, but not in $\text{3NF}$
- not in $\text{2NF}$