Which of the following are accurate depictions related to the Capital asset Pricing Model:

1. Assets which lie on the Security Market Line are accurately priced to the risk level;
2. Assets which lie above the Security Market Line are considered under valued and are opportunities to achieve strong risk-related returns;
3. Assets which lie beneath the Security Market Line are considered over valued and are investments providing undesirable risk-related returns;
4. Risks measured on the Security Market Line are limited to only Systematic Risks to the Market Portfolio;
5. Only b and c
6. a, b, c and d