This is a classic forensic toxicology distinction between $body$ $packing$ and $body$ $stuffing$.
A body packer is a deliberate drug courier - often crossing international borders - who swallows or inserts many carefully manufactured, double- or triple-wrapped packets (frequently condoms or latex) each holding a large, sometimes lethal, quantity of narcotic. The scenario given (an international traveller, multiple professionally sealed condom packets of drugs) is the textbook picture of this premeditated smuggling, hence the answer.
By contrast, a body $stuffer$ acts on impulse: when arrest is imminent, the person hastily gulps small amounts of loosely or unwrapped drug simply to hide evidence. Because the wrapping is poor, stuffers are at high risk of early packet rupture and overdose despite smaller drug loads.
$Masking$ is a different concept altogether - concealing the presence of a drug from detection (adulterating samples, using cutting agents), not swallowing it. "Body pushing" is not a valid medico-legal term and serves only as a distractor.
\[\boxed{\text{Term} = \text{Body packing}}\]