Donders' measurement of reaction time is particularly important because it demonstrated the "time course" on which the mind operates. Donders found that it took to decide which of two buttons to push in response to a stimulus.
A. 1/100 second
B. 1/10 second
C. a second
D. two seconds

The answer is B:  1/10 second

Explanation:

Donder conducted an experiment on decision making and in his experiment, he asked participants to push a button whenever a light was presented. In his experiment, the participants were engaged in simple reaction time task. The results of this experiment suggested that it took 1/10 seconds for participants to decide the correct button to push when presented with the stimulus.

answer; proximity;