Compare 4 or more columns values I have a table like:

ID   A0  A1  A2 A3 A4
14   A   B   A  C  A
15   A   A   A  A  A


I need to compare all 5 columns and check if they have same value and retrive the only one that have all same values....in this case the one with ID 15.
Is there a way to accomplish that in T-SQL?
I'm not familiar with SQL Server's brand of 
SQL, but it must be something like:

SELECT ID FROM My_Table 
WHERE 
(A0 = A1) AND
(A1 = A2) AND
(A2 = A3) AND
(A3 = A4);


Check out this dbfiddle.uk which shows all the answers in the answer thread.