Critical Reasoning (CR) | Researchers have noted

Researchers have noted that panda bears that have given birth to live young live
longer in the wild. Therefore, these researchers have concluded that giving birth
to live young increases a panda's lifespan.
The argument makes which of the following assumptions?
(A) Pandas that have given birth to live young will not be killed by predators.
(B) Since male pandas cannot give birth, female pandas live longer than male
pandas.
(C) Pandas that are already likely to live longer are also more likely to
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