Advances in television broadcasting have created changes in millions of u. s. families in a. sleep habits. b. conversation patterns. c. meal arrangements. d. all of these.

The answer is (d).all of these

Explanation:

There are lot of advancement in the television industry in the last 20 years.There are lot of things to watch.If a person opens TV he or she will find something to watch unlike the time before 90's there were not many things to watch and less supply of electricity.Nowadays people are addicted to television so result in improper habits.

answer; i believe the correct answer is network?

there is no universally accepted definition of art. although commonly used to describe something of beauty, or a skill which produces an aesthetic result, there is no clear line in principle between (say) a unique piece of handmade sculpture, and a mass-produced but visually attractive item. we might say that art requires thought - some kind of creative impulse - but this raises more questions: for example, how much thought is required? if someone flings paint at a canvas, hoping by this action to create a work of art, does the result automatically constitute art?