Assertion (a) : built-in functions are predefined in the system and can be directly used in any program.
reason (r) : id( ) and type( ) are built-in functions in python.
a. Both assertion and reason are correct and reason is the correct explanation of assertion.
b. Both assertion and reason are correct, but reason is not the correct explanation of assertion.
c. Assertion is true, but reason is false.
d. Assertion is false, but reason is true.