Basic oxides are oxides that react with water to form a base (alkaline solution) when dissolved. Bismuth (III) oxide (Bi2O3) is a basic oxide that reacts with water to form a basic solution.
So, the correct option is (C): Bi2O3
Method used for separation of mixture of products (B and C) obtained in the following reaction is: 
Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below: