What were the positive and negative outcomes of the
establishment of the Dual Monarchy?

The positive and negative outcomes of the  establishment of the Dual Monarchy is described below in detail.

Explanation:

Positive:

Dual monarchy happens when two separate countries are governed by the same monarch, reflect the same foreign plan, endure in a system associated with each other, and have a merged military but are differently self-regulatory. ... A dual monarchy is not significantly a personal union.

Negative:

The division continued among different countries.Ethnic minorities experienced little benefit.

The answer is d.  the north had organized schools, whereas the south had few organized schools.