What steps did Charlemagne take to consolidate his position as a ruler?  
1.Repulsed the Muslim invasion of Eastern Europe

 
2.Setup a strong and efficient government

 
3.Invaded whole of Europe

 
4.Divided his empire among his sons to be regional rulers under his authority

Correct answers are:

2.Setup a strong and efficient government.

4.Divided his empire among his sons to be regional rulers under his authority.

Explanation:

Option 2 is correct as he created a functional system which enabled him to strengthen his country.

Option 3 is not correct as he was ruling only in Western Europe.

Option 4 is correct as Charles the Younger, Carloman and Pious were all important figures during his reign.

the manhattan project's indispensable man

imma say false because i dont know anything about this.