Final answer:
The election cycle frequencies correctly match with Presidential elections every four years, and Congressional and midterm elections every two years; there is no standard eight-year election cycle in the U.S.
Step-by-step explanation:
To match the frequency of the election cycle to the corresponding election type:
- Four years: Presidential elections
- Eight years: This time frame is not standard for U.S. elections, so there is no corresponding election type.
- Two years: Congressional elections and midterm elections
Federal general elections are held every two years on the first Tuesday following the first Monday in November. Presidential elections occur every four years during these general elections. Midterm elections, which are also part of the general elections, occur halfway between presidential elections and involve electing Congressional representatives.