Which of the following LINQ queries will you use to find the words whose length is three via displaying the result in capital letter in Asp.Net framework 4.0?

1. var query = from word in wordsgroup word.ToUpper() by word.Length into grorderby gr.Keyselect new { Length =3, Words = gr };

2. var query = from word in wordswhere word.Length==3group word.ToUpper() by word.Length into grorderby gr.Keyselect new { Length = gr.Key, Words = gr };

3. var query = words.GroupBy(w => w.Length, w => w.ToUpper()).Select(g => new { Length = g.Key, Words = g }).OrderBy(o => o.Length);