I would choose A
, but the answers are very ambiguous and depend on the context you are looking for.
A
: Today the hotel is managed by the members of the same family.
(Possible context: the family used to manage it and nowadays, they do too)
B
: Today the hotel was managed by the members of the same family.
(Context: We pulled in even more money today than yesterday, even though it was managed by the members of the same family.)
C
: Today the hotel has been managed by the members of the same family.
(Context: similar to B
although a stretch -- I would say this is the least correct)
D
: Today the hotel will be managed by the members of the same family.
(Context: Yesterday the members of the family did a good job. Today they will get to do it again.)
Choice A
may sound strange to you, but keep in mind that it is referring to "today" as
"at the present period of time; nowadays." -Oxford Dictionary