A developer wrote a unit test to confirm that a custom exception works properly in a custom controller, but the test failed due to an exception being thrown. What step should the developer take to resolve the issue and properly test the exception?

How should a developer create a new custom exception class?

What is an important consideration when developing in a multi-tenant environment?

A developer has the following code:try {List nameList;Account a;String s = a.Name;nameList.add(s);} catch (ListException le ) {System.debug(' List Exception ');} catch (NullPointerException npe) {System.debug(' NullPointer Exception ');} catch (Exception e) {System.debug(' Generic Exception ');} What message will be logged?

Which statement is true about a hierarchical relationship as it pertains to user records?