A developer has two custom controller extensions where each has a save() method.
Which save() method will be called for the following Visualforce page?
<apex:page standardController ="Account", extensions="ExtensionA, ExtensionB">
<apex:commandButton action ="{!save}" value="Save"/>
</apex:page>

Given the following trigger implementation:
trigger leadTrigger on Lead (before update){
final ID BUSINESS_RECORDTYPEID = '012500000009Qad';
for(Lead thisLead : Trigger.new){
if(thisLead.Company != null && thisLead.RecordTypeId != BUSINESS_RECORDTYPEID){ thisLead.RecordTypeId = BUSINESS_RECORDTYPEID;
}
}
}
The developer receives deployment errors every time a deployment is attempted from Sandbox to Production.
What should the developer do to ensure a successful deployment?

Considering the following code snippet:

When the code executes a DML exception is thrown.
How should the developer modify the code to ensure exceptions are handled gracefully?

What are two ways that a controller and extension can be specified on a Visualforce page?
Choose 2 answers

A developer is asked to prevent anyone other than a user with Sales Manager profile from changing the Opportunity Status to Closed Lost if the lost reason is blank.
Which automation allows the developer to satisfy this requirement in the most efficient manner?