Which word below requires an ending of -ally instead of -ly? glad music sick smug

The lectures were addressed to individuals who could see to highlight and create awareness on the discrimination and withholding of privileges to the blind.

Explanation:

Written by Kate M. Foley, the book, Five Lectures on Blindness was meant to be read at the summer session of the University of California in 1918. The author who was blind herself but was mentally intelligent and smart had been denied jobs due to her disability. She wrote this book to draw the attention of the public to the discrimination being meted out to blind people.

For example, she talked about a very smart lawyer who when he became blind, was now pitied by his colleagues and would not be offered jobs by clients. She appealed to people with sight to show more empathy to the blind and allow them to do work that they were qualified for.