Handling Multiple parameters in SQL [duplicate]

I need a stored procedure which can filter data based on multiple parameters. Say there are 4 parameters(A,B,C & D). The user can select any number of them. Like they can select only A or A & C or all 4.

For example:

1. If the user selects only A, then it should be like:

   select Col1, Col2, Col3, Col4, Col5 
   from tbl1 
   where A = 123
   

2. If the user selects parameters B & D, then it should be like:

   select col1, col2, col3, col4, col5 
   from tbl1 
   where B = 'final' and D = '1' 
   

How to write such a dynamic query with a where clause where the conditions change as per the selection?