Assertion : Both true ribs and floating ribs are present in mammals Reason : By nature, stenal ribs are true ribs as, they possess all the characters of ribs.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false

Assertion : Both true ribs and floating ribs are present in mammals Re

1.	Assertion : Both true ribs and floating ribs are present in mammals Reason : By nature, stenal ribs are true ribs as, they possess all the characters of ribs.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false
Answer» Correct Answer - B All the stenal parts of the thoracic ribs except the last five, attached the sternum below by hyaline cartilage. Therefore, they are called as true ribs. Actually last two pairs of ribs (`11^(th)` and `12^(th)` pair) provided with the sternal parts and they are not connected with the sternum and hence. known as floating ribs. Floating ribs protect the kidney.