​Ruth Executes a Will in 2015 Naming Her Nephew Stan

Multiple Choice

​Ruth executes a will in 2015 naming her nephew Stan as sole beneficiary. In 2017, Ruth executes another will, naming her niece Tammy as sole beneficiary, but does not state that she is revoking the previous will. On Ruth's death

A) ​Stan and Tammy will share the estate in equal shares.
B) ​Stan will be the sole heir.
C) ​Tammy will be the sole heir.
D) ​the estate will pass as if there were no will.