I'm pretty sure the answer is be
Books .
<span>The new techniques of printing allowed the widespread reading of books , and among those being printed were new editions of all the classical works .</span>
To freely practise their religion
The correct answer for the given question above would be option B. The statement that best describes one way in which the use of airpower during World War II changed warfare is that, airpower <span>made killing a mechanical act rather than a personal act. Hope this is the answer that you are looking for.</span>