Rubidium belongs to Group I, whereas strontium belongs to Group II in the Periodic Table. Which row gives the nature of rubidium oxide, $\text{Rb}_2\text{O}$, and strontium oxide, $\text{SrO}$?
- A$\text{Rb}_2\text{O}$ acidic, $\text{SrO}$ acidic
- B$\text{Rb}_2\text{O}$ acidic, $\text{SrO}$ basic
- C$\text{Rb}_2\text{O}$ basic, $\text{SrO}$ acidic
- D$\text{Rb}_2\text{O}$ basic, $\text{SrO}$ basic