In an equation, A= B*C, the value of item B and C are known as.......

Basic Value

The correct answer is option 1- Basic Value.

In the equation A = B × C, if B and C are known, their values are typically referred to as Basic Values.

Basic Values are the known or given quantities used to calculate another value. Derived Value refers to a quantity that is calculated using basic values (in this case, A is the derived value).