Which one of the following items gives its co | vedclass

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(A) In humans,there are $12$ pairs of ribs that form the bony lateral walls of the thoracic cage. The first $7$ pairs are true ribs,the next $3$ pairs

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Floating ribs in humans $-4$

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(A) In humans,there are $12$ pairs of ribs that form the bony lateral walls of the thoracic cage. The first $7$ pairs are true ribs,the next $3$ pairs are false ribs,and the last $2$ pairs ($4$ ribs in total) are called floating ribs. Floating ribs are called so because their anterior ends are not attached to the sternum or the cartilage of any other rib. Therefore,the total number of floating ribs in humans is $4$.

Which one of the following items gives its correct total number?

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