After air is taken in through the mouth or nose, it travels through the bronchi, trachea, and the lungs pharynx, trachea, and then the lungs diaphragm, alveoli, and then the bronchi bronchi, alveoli, and then the diaphragm

the transfer for conduction is the heat transfering from the liquid to the spoon

the transfer for convection is the heat rising from the liquid to the air

the transfer for radiation is the heat going through the sides of the cup and to the air

at least that is what i would do

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.