The peak of the Ottoman Empire was the year 1683, when it had conquered a big portion of Europe and almost reached Vienna. The fact that it did not manage to conquer Vienna was the beginning of its demise.
You forgot to add the following, I have nothing to answer with.
In the 1990s, many companies began to downsize. This was partly because of the recession that began in July of 1990.
Answer:
The growth of the empire reaching Europe on its greatest extent.
Explanation:
When Genghis Khan first took control of the Mongol Empire it started absorbing other tribes and adding them to their empire by force or alliances, the extent of the empire would begin in the pacific ocean and reach what we now know as India, but after Genghis Khan's death his hears would take it to a new extend conquering parts of Europe too, that's one example of the pattern on mongolian expansion.
The best answers are:
A) Frontier Warfare
B) Ongoing Corruption
D) Excessive Taxation
The Chinese resented Mongol rule, who oversaw the Yuan Dynasty, and largely felt that they had lost the Mandate of Heaven by the late 1300s. This was largely due to national disasters and plague, and was compounded by the rulers having few resources to deal with them due to constant warfare, corruption, and resulting high taxation.