According to WisDOT, which statement about starting Wisconsin CDL knowledge testing is correct?

1. All CDL applicants must pass the General Knowledge test, all knowledge tests are free, no appointment is necessary, and 80% or more is passing.
2. Only Class A applicants take General Knowledge, and Wisconsin charges a separate fee each time the test is taken.
3. Wisconsin lets applicants skip General Knowledge if they complete Entry-Level Driver Training before applying for a CLP.
4. A CDL knowledge test appointment is always required, and a passing score is 70% or more correct.