Final answer:
Private Letter Rulings are issued by the IRS National Office in response to a specific taxpayer request, but cannot be cited as precedent by other taxpayers.
Step-by-step explanation:
The correct statement with respect to Private Letter Rulings is option A: They are issued by the IRS National Office in response to a specific taxpayer request. Private Letter Rulings are written decisions by the IRS in response to a taxpayer's specific inquiry regarding the application of tax law to their own particular set of facts. These rulings are only binding on the taxpayer who requested it and cannot be cited as precedent by other taxpayers.