How do main and subordinate ideas assist in helping audience members remember information? 

Role .....?

What will be an ideal response?

McLuhan focused on the shift from oral traditions to print societies and later from print societies to electronic media and argued that new technologies ______.

A. make it harder for us to communicate B. do not influence us as a society C. rework the balance of our senses as we consume content D. make us as consumers less attuned to what we are consuming