Media baron rupert murdoch bought tv guide in 1988 because of
a. it was one of the world's most profitable magazines he wanted to ensure that programs for his fox network would be listed
b. he wanted to change the magazine's liberal editorial policy
c. he enjoyed reading the magazine
d. he was afraid it would go out of business without him

he wanted to ensure that programs for his Fox network would be listed              

Explanation:

           A media baron is a person who controls and owns many newspapers, magazines, television companies and publication houses, etc.

           Rupert Murdoch, a news entrepreneur owns the global media company, the News Corp. Murdoch controls the media empire which includes The Times of London, Fox News,  and The Wall Street Journal.

           Walter H. Annenberg sold TV Guide for  $3 billion to Rupert Murdoch's News Corporation. Murdoch bought it because he wanted to make sure that the channels for his Fox Network would be listed.

Thus the answer is ---

he wanted to ensure that programs for his Fox network would be listed    

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

the correct answer is d