Thorndike plotted the results of his puzzle box experiments as graphs. the resulting curves show a with succeeding trials.
a. decrease in time
b. decrease in errors
c. change in topography
d. increase in the rate of behavior

The correct answer is - option A.

Explanation:

E. L. Thorndlike invented a laboratory device called puzzle box to study the learning behavior especially operant or instrumental conditioning in animals (cats). In this experiments cats are placed individually into the different boxes that can be open by animal by latch like device.

In this experiment the the results of trials by the animal with respect to the time is plotted as graph in where with decrease in the time with succeeding trails.

Thus, the correct answer is - option A.