The Weber-Fechner Law Is the Relationship According to Which the Perceived

The Weber-Fechner law is the relationship according to which the perceived change in any stimulus:

A) depends upon an initial approximation, which is then updated in accordance with additional information.
B) depends upon the ease with which it is possible to summon similar changes from memory.
C) varies according to the size of the change measured as a proportion of the original stimulus.
D) varies depending upon whether the change triggers loss aversion.