Which of the following did not lower the price of newspaper publishing

The reason is that internet access, advertising, corporate ownership, and social media are playing as huge contributors to the decline in newspaper production. The invention of the internet meant losses in revenue in print newspaper.

Explanation:

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

safaid was known as the most beautiful architecture