Assertion : In all conductors, for studying the thermoelectric behaviour or metals, lead is taken as a reference metal. Reason : In lead, the Thomson effect is negative.

If the assertion and reason both are false.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If assertion is false but reason is true.

Assertion : In all conductors, for s

1.	Assertion : In all conductors, for studying the thermoelectric behaviour or metals, lead is taken as a reference metal. Reason : In lead, the Thomson effect is negative.
A.	If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.	If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.	If assertion is true but reason is false.
D.	If the assertion and reason both are false.
E.	If assertion is false but reason is true.
Answer» D. If the assertion and reason both are false.