Vitamins MCQs, PLANNING OFFICER/ DEPUTY DISTRICT OFFICER (PLANNING) (BPS-17)P & D Department. 2014, PPSC Solved Past Papers MCQsNight blindness is caused by lack of which vitamin?A. Vitamin A B. Vitamin B C. Vitamin C D. Vitamin D The Headquarters of Asian Development Bank (ADB) is located at:What is the main cause of earth quakes?