Pls help i dont understand this

Choose the statements that correctly describe the electoral college. 1. not all states get the same number of electoral votes. 2. there are 538 members of the electoral college. 3. members of congress are part of the electoral college. 4. to become president, a candidate must get a majority of the electoral votes. 5. a candidate needs 270 electoral votes to win an election. 6. the electoral college is used the elect all national government offices.