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Choose the appropriate options to complete the sentence below. Natural killer
English Communicative
Do Indians Get Enough Sleep?
Question
Updated
19 Aug 2026
Choose the appropriate options to complete the sentence below. Natural killer cells
A
Choose Your Answer
A
make a person look old pretty quickly.
B
are produced in large numbers when we stay awake.
C
help us fight viruses and bacteria.
D
work well even for sleep-deprived people.
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