Assertion `:` The images formed by total internal reflections are much brighter than those formed by mirrorrs or lenses.
Reason `:` There is no loss of intensity in total internal reflection.
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
