UPDATE can be granted only on tables and views, because it is necessary to modify data within these objects. SELECT can be granted on tables and views, enabling reading of data from these structures. REFERENCES can be granted only on tables and views to allow the creation of foreign key constraints referencing these objects. DELETE cannot be granted on sequences, as it pertains to removing data, which is not applicable to sequences. ALTER can be granted on both tables and sequences for changing their structure or properties, and INSERT is applicable primarily to tables and views but not sequences.