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

What are two ways that a controller and extension can be specified on a Visualforce page? Choose 2 answers
A . a@pex:page=Account extends="myControllerExtension"
B . Qo apex:page standardController="Account" extensions="myControllerExtension”
C . apex:page controllers="Account, myControllerExtension”
D . apex:page controller="Account” extensions="myControllerExtension"”

Answer: B,D