The answer is B vitamin k.
Put up informative posts warning others and giving statistics and facts about the current pandemic, ensure procedures are discussed and and the hotline is shared, posters and fliers are also a gud idea to ensure diversity, let them be up to date with the news frequently and make sure to practice the right procedures.
<span>Constricted air passages and higher air pressure in the lungs at maximum inhalation</span>
C. nose .......................................