Question

Given the fact that most of us _________ over 90% of our time indoors, it is most important to _______ that the air we breathe in at home or in offices can be _______. It can be a ______ of illhealth. 

Select the most appropriate option to fill in the blanks. 
A waste; admit; corrupted; basis
B invest; remember; murky; reason
C consume; know; contaminated; reason
D spend; recognise; polluted; cause
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RBI Grade B 2026 Phase 1 Memory Based Paper
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