if a relation has 6 attributes and 100 tuples the cardinalit

if a relation has 6 attributes and 100 tuples the cardinality of the relation is

1) 100;

2) 6;

3) 100 * 6

4) 100 + 6

PLEASE EXPLAIN YOUR ANSWER

Solution

As the relation having 6 attributes and 100 tuples , so we can say that we have:
6 columns and 100 rows.

In a relation, cardinality is given with respect to column. The cardinality of a column is basically the unique number of values that appear in the table for that column. Here each column having 6 attribute and for each attribute we have 100 values, Let say that each column having unique values to cardinality for each column will be 100

so answer will be 100