Convert columns in rows in SQL server

CREATE TABLE Questions
(
  Question varchar(30),
  Sol25A int,
  Sol25B int,
  Sol25C int,
  Sol40A int,
  Sol40B int
);

INSERT INTO Questions (Question, Sol25A, Sol25B, Sol25C, Sol40A, Sol40B)
VALUES('A', 1, 4, 2, 6, 0),
('B', 2, 3, 2, 1, 9),
('C', 6, 7, 1, 0, 8);

SELECT Solution, SUM(Points) Total
FROM   
  (
    SELECT Question, Sol25A, Sol25B, Sol25C, Sol40A, Sol40B  
    FROM Questions
    ) pvt  
UNPIVOT (Points FOR Solution IN (Sol25A, Sol25B, Sol25C, Sol40A, Sol40B)  
)
AS unpvt
GROUP BY Solution;

Solution 	Total
Sol25A 	9
Sol25B 	14
Sol25C 	5
Sol40A 	7
Sol40B 	17