The correct answer is: Only conclusion I follows.
The first statement is in the form of “All A are B”. The second statement is in the form of “C is A”. In syllogistic logic, this means that we can conclude that “C is B”. In other words, we can conclude that Tanya will marry a bureaucrat.
However, we cannot conclude that Tanya will not marry a bureaucrat. This is because the second statement does not tell us anything about all intelligent girls. It only tells us that Tanya is intelligent. It is possible that there are other intelligent girls who do not marry bureaucrats.
Therefore, only conclusion I follows.