In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.
Passage:

Screen time is an inescapable reality of modern childhood, with kids of every age ............. (1) hours upon hours in front of iPads, smartphones and televisions. That’s not always a bad thing: Educational apps and TV shows ............... (2) great ways for children to sharpen their developing brains and ............... (3) their communication skills-not to mention the break these ..................... (4) provide to harried parents. But tread carefully: A number of troubling studies connect delayed cognitive ................. (5) in kids with extended exposure to electronic media.