How often did the presidency rotate between the Liberal and Conservative parties during the National Front? Every two years Every four years Every six years Every eight years

## Step 1<br />The problem is asking about the frequency of the presidency rotating between the Liberal and Conservative parties during the National Front. The National Front refers to a political party in Argentina, which was in power from 1973 to 1976.<br />## Step 2<br />The presidency during this period was shared between the Liberal and Conservative parties. The Liberal party was in power for four years, and the Conservative party was in power for the next four years.<br />## Step 3<br />Therefore, the presidency rotated every four years.