Answer:
Human Heart beats 100,000 times a day. (1 option is the correct answer)
C. Phobias are irrational fears about something. They are "irrational" because a person may fear something that would not logically pose any real threat or harm, such as fearing small spaces (claustrophobia) like elevators because one might feel like they are suffocating, even though elevators obviously do not cause people to suffocate.
C. Being polite in your emails and discussions.
