In the Vector Space model: given 2 documents D1 and D2, suppose the similarity between D1 and D2 is 0.08, what will be the similarity between D2 and D1 (i.e., if we interchange the contents of the documents)? O a. Equal to 0.08. O b. It depends on the documents' contents. O c. Bigger than 0.08. O d. Smaller than 0.08