In which two org types can a developer create new Apex Classes? Choose 2 answers

A visualforce interface is created for Case Management that includes both standard and custom functionality defined in an Apex class called myControllerExtension. The visualforce page should include which <apex:page> attribute(s) to correctly implement controller functionality?

The Job_Application__c custom object has a field that is a Master-Detail relationship to the Contact object, where the Contact object is the Master. As part of a feature implementation, a developer needs to retrieve a list containing all Contact records where the related Account Industry is 'Technology' while also retrieving the contact's Job_Application__c records.
Based on the object's relationships, what is the most efficient statement to retrieve the list of contacts?

A developer receives an error when trying to call a global server-side method using the remoteAction decorator.
How can the developer resolve the error?

An apex trigger fails because it exceeds governor limits. Which two techniques should a developer use to resolve the problem? Choose 2 answers