Create a multiple-choice question based on the following statement.
The European Union is a political and economic union of 27 member states.
What is the European Union?

a. A military alliance of 25 member states
b. An economic union of 26 member countries
c. A historical society composed of 24 countries
d. A political and economic union of 27 member states
Complete the following task based on the instruction and optional input provided.### Instruction:
Create a multiple-choice question based on the following statement.

### Input:
The European Union is a political and economic union of 27 member states.

### Output:
What is the European Union?

a. A military alliance of 25 member states
b. An economic union of 26 member countries
c. A historical society composed of 24 countries
d. A political and economic union of 27 member states