If you are looking from the following possible choices:
A)
Brian has recently had to take care of his ailing grandma and his
grades have slipped. Ne has become very moody and gets angry very
quickly
B) Gia like to spend her days doing nothing and get angry when
her mom asks her to clean her room or do some other chore
C) Tania
is very particular about her possessions and loses her cool the moment
anyone touches them
The person who most often probably experiences stress currently would be A - he gets angry faster, can be agitated faster etc. These are clear signs of stress.