Answer:
The correct answer is letter "D": Improperly packed by the party shipping them.
Step-by-step explanation:
Carriers are liable for the loss of goods being transported by them under three scenarios: acts of God (because they are unpredictable), acts of the shipper (negligence of the person providing with the goods being transported), and acts of a public enemy (a country engaging into the war).
In that case, the carrier is likely not to be found liable if the shipping items were incorrectly packaged the sending party.