All of these are used in biometrics
a.
voice
b.
fingerprint
c.
scent
d.
retinal scan

I Think Its Scent . Because Scent Dont Have Anything To Do  With Finding Out Who A Person Is .

Answerindonesia;

Some responsibilities of having a checking account : write checks clearly and carefully.  keep an accurate record of checks written, so you can keep track of payments & deposits made to cover the check. maintain checks register with accuracy so as to avoid returned checks.