Who was at the
head of the Roman Republic? *

Augustus

Explanation:

In Roman society, the aristocrats were known as patricians. The highest positions in the government were held by two consuls, or leaders, who ruled the Roman Republic. A senate composed of patricians elected these consuls. At this time, lower-class citizens, or plebeians, had virtually no say in the government.

they are the executive, (president and about 5,000,000 workers) legislative (senate and house of representatives) and judicial (supreme court and lower courts). the president of the united states administers the executive branch of our government.

yup! you are correct it is b.