The correct answer is: A divisional court of Queen’s Bench Division.
Appeal on a point of law from a decision of the Crown Court in its appellate capacity is to a divisional court of Queen’s Bench Division.
Notice that the question is asking about the Crown Court in its appellate capacity, i.e. when it is hearing an appeal from the Magistrates' Court.
Please take note that this is asking about "case stated appeal" rather than normal appeal. Please refer to textbook. On page 9, section 3.3.1, first paragraph, second line, "A
"case stated" appeal on a point of law to a Divisional Court of the High Court"