Two friends are eating together on a dining table.
One of them suddenly starts coughing while
swallowing some food. This coughing would have
been due to improper movement of
(a) epiglottis (b) diaphragm
(c) neck (d) tongue.
One of them suddenly starts coughing while
swallowing some food. This coughing would have
been due to improper movement of
(a) epiglottis (b) diaphragm
(c) neck (d) tongue.