After a testator dies with a valid last will and testament, but before authority is issued to her nominated executor, the nominated executor

a. nevertheless presently has full power to manage the decedents probate estate

b. generally presently has no power to manage the decedents probate estate

c. has no power to manage the decedents probate estate, unless the will specifically says otherwise

d. has no power to manage the decedents probate estate but is an agent of the decedents probate estate