C# Specifying orderby in extension method

Question

How to specify descending in extension method

var qry=from p in context.Persons 
                   orderby p.salary descending select p;

extension method

var qry=context.Persons.OrderBy(c=>c.salary);

Answer 1

Use

var qry=context.Persons.OrderByDescending(c=>c.salary);

Answer 2

Use:

var qry=context.Persons.OrderByDescending(c=>c.salary);