(23) While most modern zoos do not teach animals to perform "tricks," they do train animals to respond to certain commands to make them safer to handle, move and for examination. Look at the underlined section marked number (23). There may be a mistake in the way the sentence is written. If you find a mistake, choose the answer that corrects the mistake. If there is no mistake, choose ‘Correct as is.' A) Correct as is. B) While most modern zoos do not teach animals to perform "tricks," they do train animals to respond to certain commands to make them safer to handle, move and examine. C) While most modern zoos do not teach animals to perform "tricks," they do train animals to respond to certain commands to make them safer for handling, to move and examine. D) While most modern zoos do not teach animals to perform "tricks," they do train animals to respond to certain commands to make them safer for handling, movement and to examine.