When Reading a Table for Bivariate Analysis That Displays Percentages

Multiple Choice

When reading a table for bivariate analysis that displays percentages of some attributes,what is the rule of thumb for reading the table?

A) if it adds up to 100% the statistics are accurate
B) if the table is percentaged down, read across and if the table is percentaged across, read down
C) if the table is percentaged down, read down and if the table is percentaged across, read across
D) none of the above