Considering the relation schemas R (A, B, C, D) and S (C, D, E, F), what will be the degree of the resultant relation of the following Relational Algebra expression, Where “*” represents the “natural join” operation?
\(\left( {{\sigma _{c1}}\left( {{\pi _{A,B,C}}\left( R \right)} \right)} \right)*\left( {{\sigma _{c2}}\left( {{\pi _{C,D,E}}\left( S \right)} \right)} \right)\)
1
5
2
3
3
6
4
4