Thank you Lokesh-ji, Nice question.

(So simple and yet it keeps us thinking..., to be honest I selected E,E and then seeing 2nd one's datatype as varchar, but the ISDATE takes nvarchar, so i thought again E,1 and possibly by thinking that it might return 1. Luck is playing a fair role with me in answering the question, but not a good practice for me like this, I need to be more consistent in my choice. 🙂 )