Go back to M70-201 - Magento Certified Developer Plus Exam

Question :-

Which one of the following xpaths is correct for replacing Mage_Customer_Model_Custom_Address via Mage::helper ('customer/address')?
Global/customer/helpers/address
Global/rewrite/helpers/rewrite/address
Global/helpers/customer/rewrite/address
Global/helpers/rewrite/customer_address
Global/helpers/rewrite/customer/address

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