In performing substantive auditing procedures, which of the following statements provides appropriate guidance to the auditor?

The auditor can perform both substantive analytical procedures and direct tests of details.

The auditor should perform substantive procedures for all assertions for all financial statement accounts.

The auditor should perform more $($or more rigorous$)$ substantive procedures when control risk has been assessed as low.

If the tests of controls enable the auditor to conclude that the system of controls can be relied upon to prevent and$/$or detect misstatements, then the auditor is not required to perform any substantive procedures on account balances.