What are the maximum and minimum number of rows returned by the R$1$ right outer join R$2?$

Min $=$ rows in $R2,$ max $=($rows in $R1+$ rows in $R2)-1$

Min rows in $R1+$ rows in $R2)-1$

Min $=0,$ max $=$ rows in $R1+$ rows in $R2$

Min $=$ rows in $R2,$max$=$ rows in $R1*$ rows in $R2$