Which ribs show bucket handle type of movement?

The correct option is C Ribs 7-10

• In humans, The vertebral column is formed by 26 serially arranged units called vertebrae and is dorsally placed.
  
• There are 12 pairs of ribs. Each rib is a thin flat bone connected dorsally to the vertebral column and ventrally to the sternum.
  
• Bucket-handle is a movement of ribs that results in the change in transverse diameter of the thorax.
  
• In general, the ribs move around two axes. As the anterior end of ribs is about 4 cm lower than the posterior end, the middle part of the rib is lower than anterior and posterior ends. Movement at costovertebral joints7 to 10 about an anteroposterior axis results in raising and lowering the middle of the rib, the Bucket-handle movement. In elevation, this increases the transverse diameter of the thorax.
  
• So, the correct answer is 'Ribs 7-10'