Which of the following statements is TRUE regarding deductible mortgage interest on schedule A$?$ The mortgage:

Can be used to consolidate credit card debt.

Intetest is only deductible on no more than $$759,000($$$375,000$ on mfs filers$)$ mortgage debt taken out after December $15,2017.$

May be for a residence used $100\%$ as rental propertu.

Deductible interest amount includes private mortgage insurance.