Assertion. Cathode rays originate from the cathode and move towards andoe.
Reason. Electrons present in the material of the cathode are continuously emitted on applying high voltage
A. If both assertion and reason are true, and reason is the true explanation of the arrertion
B. If both assertion and reason are true, but reason is not the true explanation of the assertional
C. If assertion is true, but reason is false
D. If both assertion and reason are false