My father said, "We have been living here since the day this house was built."

A

My father said that they had been living here since the day that house was built.

B

My father said that they had been living there since the day that house had been built.

C

My father said that they have been living there since the day that house were built.

D

My father said that they have been living here since the day this house were being built.