Speaking style refers to how you use _____________ to express

All of the following were inventions that helped journalism during this period except:

a. telegraph b. telephone c. typewriter d. street-cars

What two technologies combined to create the earliest versions of the “smart phone”??

a. ?Internet-based software and cellular phones b. ?wireless phone networks and video conferencing systems c. ?personal data assistants and cellular phones d. ?cellular phones and digital television sets