Which of the following achieve their effects by altering the electrical activity of the brain?

Sexual development before the age of 8 is termed ______

Fill in the blank with correct word

The ending of the story of Little Red Riding was changed apparently because some __________.

a. sought to be kinder to the wolf in later endings b. wanted to remove Grandmother from the later endings c. thought that children would be upset by human death in the first version of the story d. wanted to emphasize the party at the end of later versions e. thought that the original ending was too gentle to Little Red Riding Hood herself