You've provided three achievements:
1 Equality of male and female
2 House of Wisdom
3 Irrigation techniques
These are 3 of the most important achievements of the Islamic Kingdoms and you've explained them briefly. If the instructions were to explain each achievements concisely, your work would be enough.
Answer: A. There's limited wealth in the world.
Explanation:
Mercantilism was based on the notion that there was limited wealth in the world so countries needed to accumulated as much of it as possible.
For this reason, countries imposed high customs duties on imports from other countries so that people would not buy them and send money to their countries. At the same time they tried to export more so that countries would give them more of the wealth in the world.
