You are requested to join us for lunch.This is an imperative sentence.
Right Answer is: D
This is an imperative sentence. Such sentences indicate order, request, suggestion etc. Such sentences either start with verb (Ist form) or in some case, with let. The structure for such sentences for passive voice is:
You are requested/ordered/asked etc + to + verb (Ist form) + object…
So, the active voice of the given sentence would be:
Please join us for lunch.
Hence, option D is the correct answer.