Answer:first option
Explanation:
If the females only give birth to 1-2 offspring per litter, it would take longer to keep the population alive due to the low ammount of babies being born (you have to concider that some babies don't survive to adulthood though)
Because the lung has two bronchi, it can still function if one bronchus is blocked by a foreign object. No gas exchange will happen to the affected side, and the other lung will compensate for the loss of air. The blocked portion though can become inflamed and can lead to infection and damage.
The answer would be A true.