Choose the most suitable translation:
(1) मैं एक पत्र लिखने जा रहा हूँ।
(A) I am going to write a letter
(B) I have been writing a letter
(C) I write a letter
(D) I was writing a letter
(2) नदियों को प्रदूषित नहीं करना चाहिए ।
(A) The rivers are not be polluted
(B) The rivers were not be polluted
(C) The rivers would not be polluted
(D) The rivers should not be polluted
(3) सच्ची मित्रता दुर्लभ है।
(A) True friend is not available
(B) True friendship is rare
(C) True friend is difficult
(D) It is true to get good friend.