Which of the following best describes cardiovascular fitness?
a.
the ability of the body to do prolonged work
b.
the ability of the body to transport oxygenated blood efficiently
c.
the ability of the body to quickly shed fat
d.
the ability of the body to convert sugar into energy

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The question may be incomplete (there are not the possible answers), but according to the scenario, kaley and her coworkers could be in a humanitarian organization like red cross (in the us or in other countries). it's an organization which organizes health and safety services, disaster services, and blood donations.