Assertion. Fine structure of the objects can be observed by transmission electron microscope (TEM).
Reason. Study of living cells cannot be done through TEM, because of high voltage, which is required to operate it, Kills the cells.
A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
B. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. If Assertion is true but Reason is false.
D. If both Assertion and Reason are false.